use synthetic division and the remainder theorem to find p(a). p(x)=x^2+7x^2+4x. a= -2

Question

epikrebel · Answer

$$p(x)=x^2+7x^2+4x$$?

anonymous · Answer

an equation can't be the answer. it has to be a number.

epikrebel · Answer

im asking its x^2+7x^2?

anonymous · Answer

woops, i accidently made x squared. it's P(x)=x^3+7x^2+4x; a= -2

epikrebel · Answer

When you say a=-2 you mean f(-2)?

anonymous · Answer

i have no idea what that means either. i guess it's f(-2). in the question it says, p(a) so it must be p(x)... i don't know, that's why i'm asking haha.

anonymous · Answer

yeah solve f(-2)

epikrebel · Answer

have no clue how to show synthetic division...

anonymous · Answer

well, just the answer would be fine. i just need to get this question correct. i've done fine on the other ones. this is just confusing.

epikrebel · Answer

Basically from synthetic division you should get 1 5 -6 12.
Which is $$x^2+5x-6$$ with the remainder of 12.
And f(-2)=12 basically.

epikrebel · Answer

$$x^2+5x-6+\frac{12}{x+2}$$

anonymous · Answer

thank you.