Let f (x) = x^3+2x^2+3x+1 and g (x) = 4x-5 find f (x) * g (x)

Question

Mathematics

Hailey Pugh

24 October, 15:13

Let f (x) = x^3+2x^2+3x+1 and g (x) = 4x-5 find f (x) * g (x)

+4

Answers (1)

Know the Answer?

Yamilet Thompson · Answer 1

Answer: f (x) * g (x) = 4x^4-x^3+7x^2-11x-5

Step-by-step explanation: I usually just split the expression into terms but you're welcome to solve it the vertical way.

4x (x^3+x^2+3x+1) = 4x^4+4x^3+12x^2+4x = A

-5 (x^3+x^2+3x+1) = - 5x^3-5x^2-15x-5 = B

Add A and B together.

4x^4-x^3+7x^2-11x-5