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Mathematics 14 Online
OpenStudy (gogo123):

please help with this division problem

OpenStudy (gogo123):

(8x^3 +18x^2 +10x +15) / (2x+4)

OpenStudy (gogo123):

@Mehek14 ?

OpenStudy (gogo123):

it says i should have a quotient and a remainder

OpenStudy (gogo123):

@Jadeishere ?

OpenStudy (jadeishere):

Do you have to use a specific method?

OpenStudy (gogo123):

no

OpenStudy (jadeishere):

Okay.. Let's see here :) We could do Long Division of polynomials or Synthetic division, which is quicker, and in my opinion, easier

OpenStudy (jadeishere):

which one would you like?

OpenStudy (gogo123):

ok. whatever you think is best

OpenStudy (jadeishere):

Well alrighty then! 8x^3 +18x^2 +10x +15) / (2x+4) We'll do long division because I don't think synthetic will work here :( |dw:1466438696675:dw|

OpenStudy (jadeishere):

would you like me to explain it, or do you understand what happened while dividing?

OpenStudy (gogo123):

i think i might need you to explain,please

OpenStudy (jadeishere):

The quotient would be the answer and the Remainder (R) would be the leftover number at the end :P Okay, the first thing I did was treat this like a problem without polynomials, dividing the first term in the long division sign by the first term outside of the long division sign \[8x^3 \div 2x = 4x^2\]

OpenStudy (gogo123):

ok

OpenStudy (gogo123):

so what happened to the +4?

OpenStudy (mr_perfection_xd):

medal ...

OpenStudy (mr_perfection_xd):

@gogo123

OpenStudy (jadeishere):

Okay! That's where you get the fun part, in my opinion.. ! |dw:1466439324715:dw|

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