algebra (checking answer)
posted by Anonymous on .
Checking to make sure I did it right..
Remainder theorem to find the remainder when f(x) is divided by the given xk
f(x)=x^34x^2+2x+4; x+2
2 x 4 2 4
1 2 4 4
1 2 2 8
2)x^34x^2+2x+4. (X^32x^22x) is the answer
x^3 2x^2+2x
2x^2+4x
6x+4
2x+4
8x+8
I'm not sure the bottom is right

If you are dividing by x+2, the remainder cannot be 8x+8
The remainder theorem says that the remainder when dividing by (xa) is f(a)
f(2) = 8  4(4) + 2(2) + 4 = 24