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anonymous
 one year ago
1) When the sum of 5 and twice a positive number is subtracted from the square of the number, 0 results. Find the number.
anonymous
 one year ago
1) When the sum of 5 and twice a positive number is subtracted from the square of the number, 0 results. Find the number.

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pooja195
 one year ago
Best ResponseYou've already chosen the best response.4Let x be the number First thing it says is subtracted from the square of A NUMER (x) sooo \[\huge~\rm~x^2 \]

pooja195
 one year ago
Best ResponseYou've already chosen the best response.4Then it says the number is twice postivie soo 2x and the sum (adding) of 5 so it would look like this \[\huge~\rm~(2x+5)\]

pooja195
 one year ago
Best ResponseYou've already chosen the best response.4The result is 0 so =0 \[\huge~\rm~x^2(2x+5)=0 \]

pooja195
 one year ago
Best ResponseYou've already chosen the best response.4We can remove the parentheses and write it like this: \[\huge~\rm~x^22x5=0 \]

pooja195
 one year ago
Best ResponseYou've already chosen the best response.4Find the abc values :) a ,b , c values are \[\huge\rm Ax^2+Bx+C=0\] where a =leading coefficient b= leading coefficient c= constant term

pooja195
 one year ago
Best ResponseYou've already chosen the best response.4\[\huge~\rm~x=\frac{ b \pm \sqrt{b^24ac} }{ 2a }\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[x=\frac{ 2\pm \sqrt{2^24(1)(5)} }{ 2(1) }\]

pooja195
 one year ago
Best ResponseYou've already chosen the best response.4\[\huge~\rm~x=\frac{ (2) \pm \sqrt{(2)^24(1)(5)} }{ 2(1) }\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oh in the sqrt its 2

pooja195
 one year ago
Best ResponseYou've already chosen the best response.4ok can you solve whats in the sqrt?

pooja195
 one year ago
Best ResponseYou've already chosen the best response.4I got \[\huge~\rm~1±1\sqrt{6}\]

pooja195
 one year ago
Best ResponseYou've already chosen the best response.4eh i cheated and used a calc ;p heres the work http://prntscr.com/80bm1y

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0what calc did you use

pooja195
 one year ago
Best ResponseYou've already chosen the best response.4http://www.mathwarehouse.com/quadratic/quadraticformulacalculator.php

pooja195
 one year ago
Best ResponseYou've already chosen the best response.4Then we make 2 seperate equations one plus and one minus since we basically have to split the plus minus sign then u simplfy from here \[\frac{ \huge~\rm~1+1\sqrt{6} }{ \huge~\rm~1 }\] \[\frac{ \huge~\rm~11\sqrt{6} }{ \huge~\rm~1 }\]

pooja195
 one year ago
Best ResponseYou've already chosen the best response.4You will end up with ONE positive answer and ONE negative answer. The psotive answer is the answer to the question :)

pooja195
 one year ago
Best ResponseYou've already chosen the best response.4I never learned....:/ you will need to use a calculator or ask someone else...i have always used a calc for this part... @Astrophysics

just_one_last_goodbye
 one year ago
Best ResponseYou've already chosen the best response.0@pooja195 what do we want to convert into a decimal?

pooja195
 one year ago
Best ResponseYou've already chosen the best response.4\(\color{#0cbb34}{\text{Originally Posted by}}\) @pooja195 Then we make 2 seperate equations one plus and one minus since we basically have to split the plus minus sign then u simplfy from here \[\frac{ \huge~\rm~1+1\sqrt{6} }{ \huge~\rm~1 }\] \[\frac{ \huge~\rm~11\sqrt{6} }{ \huge~\rm~1 }\] \(\color{#0cbb34}{\text{End of Quote}}\) This and show your stpes

just_one_last_goodbye
 one year ago
Best ResponseYou've already chosen the best response.0both on top of each other like fractions correct?

ali2x2
 one year ago
Best ResponseYou've already chosen the best response.0@just_one_last_goodbye i think so

pooja195
 one year ago
Best ResponseYou've already chosen the best response.4Actually a better way to solve it Apply this rule \[\huge~\rm~\frac{ a }{ 1 }=a\]

pooja195
 one year ago
Best ResponseYou've already chosen the best response.4\[\huge~\rm~\frac{1+\sqrt{6}1}{1}=1+\sqrt{6}1 \]

pooja195
 one year ago
Best ResponseYou've already chosen the best response.4\[\huge~\rm~1+1\cdot \sqrt{6} \]

pooja195
 one year ago
Best ResponseYou've already chosen the best response.4\[\huge~\rm~1\cdot \:a=a\]

pooja195
 one year ago
Best ResponseYou've already chosen the best response.4\[\huge~\rm~1+\sqrt{6}\]

pooja195
 one year ago
Best ResponseYou've already chosen the best response.4Now turn it into decimal form

pooja195
 one year ago
Best ResponseYou've already chosen the best response.4We dont even need to solve fore the subtraction problem because we know that the number will be negative

just_one_last_goodbye
 one year ago
Best ResponseYou've already chosen the best response.0I got 3.44949

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I was gonna ask if we round it to 3.45

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0okay, thank you for being so patient.

ali2x2
 one year ago
Best ResponseYou've already chosen the best response.0oh they already said that
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