Question

Please help!! This is for a test and I'm really confused. If possible, please explain how you got your answer for future reference.

Thanks!

Answer 1

x(x+5)[(x+5)² +3(x-1)]

Explanation:

(x²+5x)(x²+13x+22)

Expand

(x²+5x) (x²+13x+22) by multiplying each term in the first expression by each term in the second expression.

x²x²+x²(13x)+x²⋅22+5x⋅x²+5x(13x)+5x⋅22

Simplify terms.

x⁴+18x³+87x²+110x