12a^3-3a^2-5a+10/4a+3

- anonymous

12a^3-3a^2-5a+10/4a+3

- Stacey Warren - Expert brainly.com

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- anonymous

long division

- anonymous

i know u do this first |dw:1354757932663:dw|

- anonymous

4a^2-3 divided in to 12a^2-3a^2=3a

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## More answers

- anonymous

ok lets do this step by step :D

- anonymous

ok

- anonymous

\[12a^3-3a^2-5a+10\div4a+3\]

- anonymous

3a^5

- anonymous

first whats 12a^3/4a ?

- anonymous

3a^2

- anonymous

yes correct :D now lets do the procedure as we are dividing numbers like in a regular way

- anonymous

|dw:1354759034295:dw|

- anonymous

yea i know that what it 6 or is it -6

- anonymous

ops -6

- anonymous

12a^3 -3a^2 -(12 a^3 +9a^2)=0 - 12a2 yes or no?

- anonymous

yes

- anonymous

ok continue dividing that using the correct answer :D

- anonymous

so 12a^2-5a u need to use a 3a again

- anonymous

remember always use parenthesis so that you can remember your sign

- anonymous

yes correct use -3a

- anonymous

(-3a)|dw:1354760013653:dw|

- anonymous

- 12x^2 - 5x -( -12x^2 - 9x ) ---------------- 0 + 4x yes or no?

- anonymous

yes

- anonymous

your -9 became +9 correct? so -5a +9a= 4a

- anonymous

yes so we have 4a+10 left

- anonymous

yes continue doing division :D

- anonymous

1 * 4a+3

- anonymous

+ 4 a +10 -( 4a + 3 } --------------- 0 + 7=R

- anonymous

so the answer is 3a^2-3a+1 7/4a+3

- anonymous

yeahhh correct :D

- anonymous

it says it's wrong =(

- anonymous

you can re chack that by multiplying (4a^2 +3)(3a^2 -3x +1 + 7/(4x+3))

- anonymous

its the faction

- anonymous

fraction

- anonymous

will you pls check the real prob again is this it ? 12a^3-3a^2-5a+10/(4a+3)

- anonymous

yea thats it

- anonymous

is it -1

- anonymous

ok lets try multiplying them to check if we arrived on it

- anonymous

(4x+3)(3x^2 -3x +1 + 1/ (4x+3))

- anonymous

12a^3-12a^2+4

- anonymous

the R=7 therefore (im gonna use x instead of a here) :D (4x+3)(3x^2 -3x +1 + 7/ (4x+3)) =12x^3 +9x^2 -12x^2 - 9x +4x +3 +7 = 12x^3 -3x^2-5x +10 or = 12a^3 -3a^2-5a +10 correct ?

- anonymous

the last one is correct

- anonymous

ok R=7 maybe thats why its looks like its wrong in the beginning?

- anonymous

it need +7/4a+3

- anonymous

whats the answer in the book?

- anonymous

yes correct

- anonymous

ya but i ask it to many time so i got it wrong =(

- anonymous

i have till12 tonight to finish these problem i'm at a lot i only need 1.4% to pass this semester

- anonymous

the new problem is 9a^3-3a^2-3a+15/3a+2

- anonymous

got that one right =)

- anonymous

ok on that one whats the first guess?

- anonymous

9a^3 / 3a= ?

- anonymous

i got it right already i'm on 9b^2-6b-8/3b-1

- anonymous

i got so far on this one 3b is the first

- anonymous

ok

- anonymous

the answer i came up with is 3b-3b- 7/3b-1

- anonymous

nope :D

- anonymous

no its wrong =(

- anonymous

try again.... :D

- anonymous

oh 3b-1b-7/3b-1

- anonymous

-9/3b-1

- anonymous

hmm if your answer start with 3b the next to it must not have any more variable b because the polynomial like ax^5 +b x^4 +cx^3 +dx^2 +ex + f you are here -----> 3b +__? gets?

- anonymous

the power should be in ascending or descending order :D

- anonymous

thats right just 1

- anonymous

descending

- anonymous

ok good,, so whats your answer?

- anonymous

3b-1- 7/3b-1

- anonymous

hmm (3b-1)(3b-1)=?

- anonymous

i think you slipped on your R=? re check again on getting your R?

- anonymous

9b^2-3b-3b+2=== 9b^2+-6b+2

- anonymous

-8-(-1) =-7

- anonymous

-3b -8 -(-3b +1) ---------- 0 - ?

- anonymous

-9

- anonymous

i got it i got it =) thanks again

- anonymous

ok YW :D

- anonymous

i'm a slow learner and never did this in high school

- anonymous

ok now you are doing good.... it just takes practice :D

- anonymous

yea thank god this is my last semester in it......

- anonymous

no one is a slow learner... its just depend if you are interested to it before or now or then .. :D

- anonymous

i'm not i will not use this in my culinary classes at all!!!!!!!!!!!

- anonymous

ive seen that you are interested to it so i did show you step by step it doesnt mean you are slow learner.. its because you are now learning it or reviewing it ..............:D

- anonymous

can u help me with my last one

- anonymous

yes you will in finding the correct ratios of those thing you need to cook according to the recipe :D

- anonymous

3-5x^2/x+2

- anonymous

ok what is it

- anonymous

i know u have to do this -5x^2+0x+3/x+2

- anonymous

arrange them first in ascending order then divide

- anonymous

yes correct go ahjead and try that

- anonymous

ok i came up with -5x-10 -17/x-2

- anonymous

ops +10

- anonymous

and +17

- anonymous

yesssssssssssss correct..............:D

- anonymous

hmm not +17 :(

- anonymous

yes -5x+10 -17/x-2

- anonymous

no it says its wrong =(

- anonymous

.this is the correct prob 3-5x^2/x+2 tyhen it should be x+2

- anonymous

not x-2

- anonymous

it worked =)

- anonymous

ok always check the prob correctly thats the main key :D

- anonymous

ok good...... :D

- anonymous

i can see from now that youl be earning good money in your culinary class after graduating :D

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