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 3 years ago
Can you please help me with this maths question
1. The cubic polynomial P(x)= x^3 +rs^2 +sx+t , where r,s and t are real numbers has three real zeroes,1,a, and a
(a) find the value of s + t
 3 years ago
Can you please help me with this maths question 1. The cubic polynomial P(x)= x^3 +rs^2 +sx+t , where r,s and t are real numbers has three real zeroes,1,a, and a (a) find the value of s + t

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myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1is the polynomial written correctly?

Mimi_x3
 3 years ago
Best ResponseYou've already chosen the best response.4woops my bad sorry P(x) = x^3 +rx^2 +sx +t

helpme1234
 3 years ago
Best ResponseYou've already chosen the best response.0Colorful pi can you help me?

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1let me try to help him and then i will look at your question

Mimi_x3
 3 years ago
Best ResponseYou've already chosen the best response.4him ? are yu referring to me ?

Mimi_x3
 3 years ago
Best ResponseYou've already chosen the best response.4noo , its a polynomial question

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1so what class is it then?

Mimi_x3
 3 years ago
Best ResponseYou've already chosen the best response.4class ? what do yu mean ? Its from the topic polynomials

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1\[P(x)=(x1)(xa)(x+a)=x^3+rs^2+sx+t\]

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1so I guess you are doing it for fun? \[P(x)=(x1)(x^2a^2)=x^3+rs^2+sx+t\] no i just thought u would like to see the steps

Mimi_x3
 3 years ago
Best ResponseYou've already chosen the best response.4no , im not doing it for fun , its my maths assignment LOL

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1\[P(x)=x(x^2a^2)1(x^2a^2)=x^3+rsx^2+sx+t\]

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1so the class is called polynomials lol?

Mimi_x3
 3 years ago
Best ResponseYou've already chosen the best response.4what does yu mean by class ?

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1\[P(x)=x^3a^2xx^2+a^2=x^3+rsx^2+sx+t\] people go to class to learn and get assignments lol

Mimi_x3
 3 years ago
Best ResponseYou've already chosen the best response.4no the class is called maths LOL

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1\[P(x)=x^3x^2a^2x+a^2=x^3+rsx^2+sx+t\]

Mimi_x3
 3 years ago
Best ResponseYou've already chosen the best response.42 unit maths to be specific

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1ok we are almost done with this problem can you guess what to do next?

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1we want both sides to be the same

Mimi_x3
 3 years ago
Best ResponseYou've already chosen the best response.4collecting like terms ?

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1ok the the coefficient of x^2 on left hand side is 1 the coefficient of x^2 on the other sides is rs so what can you say about rs and 1?

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1so we need that for the other terms as well

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1we have 1=rs a^2=s a^2=t

polpak
 3 years ago
Best ResponseYou've already chosen the best response.0I seriously think I'm being trolled here.. but just to ease my tired brain.. \[\sqrt{25} \ne 5\]

Mimi_x3
 3 years ago
Best ResponseYou've already chosen the best response.4wait , dnt yu factorise it further to (x^2a^2)(x1)

polpak
 3 years ago
Best ResponseYou've already chosen the best response.0Someone was trying to tell me that it equals both 5 and 5

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1ok the objective is to find s+t

polpak
 3 years ago
Best ResponseYou've already chosen the best response.0But I can only really prove it by going to the definition. Which they don't accept.

polpak
 3 years ago
Best ResponseYou've already chosen the best response.0Sorry for bothering you mimi, but myin rarely watches group chat (with good reason)

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1what do you think s+t is based on what i gave you above? hint we don't need that first equation rs=1

Mimi_x3
 3 years ago
Best ResponseYou've already chosen the best response.4yu talking to me or polpak ? LOL

Mimi_x3
 3 years ago
Best ResponseYou've already chosen the best response.4lols , tbh im lost , i dont get it xDD

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1do you understand when I wrote P as P(x)=(x1)(xa)(x+a)?

Mimi_x3
 3 years ago
Best ResponseYou've already chosen the best response.4yeah , i dont understand the part 1 = rs a^2 = s a^2 = t where did yu get it from ?

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1both sides had to be equal we were looking at \[P(x)=x^3a^2xx^2+a^2=x^3+rsx^2+sx+t \]

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1look at the coefficients of each term on both sides we want each term to be the same as it is on the other side

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1so if we look at the x^3's they are good they both have coefficient 1 what is the coefficient of x^2 on left hand side ? what is the coefficient of x^2 on right hand side?

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1yes now what is the coefficient of x on the left hand side? what is the coefficient of x on the right hand side?

Mimi_x3
 3 years ago
Best ResponseYou've already chosen the best response.4x on the left hand side: 1 i think x on the right hand side 1 i think

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1no what is the number in front of x on boths?

Mimi_x3
 3 years ago
Best ResponseYou've already chosen the best response.4there's no other number

Mimi_x3
 3 years ago
Best ResponseYou've already chosen the best response.4lols , its a letter not a number

Mimi_x3
 3 years ago
Best ResponseYou've already chosen the best response.4they are ? arent they are called pronumerals ?

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1never heard of this term

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1when you are doing math and you don't see a word and you see a letter it usually represents a number unless it is the word a or i

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1becauce a and i can be words

Mimi_x3
 3 years ago
Best ResponseYou've already chosen the best response.4ohh ok , i never knew that they are numbers xD

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1but usually the book will make it clear to you what they are

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1a^3 is nowhere to be found we aren;t solving equation for x

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1ok so look again at the polynomial what is the coefficent of x on both sides?

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1ok no \[P(x)=x^3a^2xx^2+a^2=x^3+rsx^2+sx+t \] ^ ^   a^2 = s

Mimi_x3
 3 years ago
Best ResponseYou've already chosen the best response.4ohh lols , sorry im so slow of understanding it

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1ok do you see the terms that don't an x in em? there terms are called constants and they must be equal of that we have the same polynomial on both sides

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1god my english is getting bad

Mimi_x3
 3 years ago
Best ResponseYou've already chosen the best response.4lols , probably getting annoyed of me not getting it xD

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1no its just late here i been up for along time today

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1so what are the constants on both sides?

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1the terms that don't have a x in them

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1t and what is it on the other side?

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1remember you are looking for nonx terms

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1\[P(x)=x^3a^2xx^2+a^2=x^3+rsx^2+sx+t \] ^ ^   a^2 = t

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1so what is s again? and what is t again?

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1not a^3 scroll up we have it above

Mimi_x3
 3 years ago
Best ResponseYou've already chosen the best response.4lols , finally i get it

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1ok now s+t is a^2+a^2 right?

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1but what is a^2+a^2?

Mimi_x3
 3 years ago
Best ResponseYou've already chosen the best response.4so substitute it in s and t

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.16+6 is 24+24 is 999+999 is

Mimi_x3
 3 years ago
Best ResponseYou've already chosen the best response.4where did 5 come from ?

myininaya
 3 years ago
Best ResponseYou've already chosen the best response.1i'm just trying to help you think what a^2+a^2 is

Mimi_x3
 3 years ago
Best ResponseYou've already chosen the best response.4really ? omg ! yay i got it right xD

Mimi_x3
 3 years ago
Best ResponseYou've already chosen the best response.4thank you very mcuh for helping (:
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