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Mathematics 8 Online
OpenStudy (zab505):

What is the quotient when (x + 3) is divided into the polynomial 2x2 + 3x - 9? A. x + 3 with a remainder of -2 B. 2x - 3 with no remainder C. 2x + 1 with no remainder D. 2x - 5 with no remainder

OpenStudy (precal):

when you factor 2x^2+3x-9 what do you get?

OpenStudy (precal):

you know one of the factors could be (x+3)

OpenStudy (zab505):

Would it be b?

OpenStudy (precal):

you could expand out (x+3)(2x-3) to find out, try expanding it and I will double check your expansion

OpenStudy (zab505):

how?

OpenStudy (precal):

distribute x to (2x-3) then distribute 3(2x-3) and then combine like terms

OpenStudy (precal):

if it is the correct solution it will match 2x2 + 3x - 9

OpenStudy (zab505):

2x^2+6x-9

OpenStudy (precal):

(x+3)(2x-3) 2x^2-9x+6x-9 2x^2-3x-9

OpenStudy (precal):

does it match?

OpenStudy (zab505):

yeah

OpenStudy (zab505):

So then it would be B?

OpenStudy (zab505):

?

OpenStudy (zab505):

are you there?

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