Question

If s(x) = 2x2 + 3x - 4, and t(x) = x + 4 then s(x) · t(x) =

Answer 1

You simply multiply the two and distribute to solve. I am starting with t(x) because I think it is easier.

(x+4)*(2x^2+3x-4) 
2x^3+3x^2-4x+8x^2+12x-16 (distribute)
2x^3+11x^2+8x-16 (combine like terms)

Answer 2

2x^3+11x^2+8x-16 ...............