Question

Simplify: (x - 1)(x2 + 10x + 4).
x3 + 10x2 + 4x - 1
x3 + 9x2 - 6x - 4
x3 + 10x2 + 4x - 4
x3 + 9x2 - 6x - 1

Answer 1

(x - 1)(x2 + 10x + 4).
This is easy since: multiply the first term (x) in the first parentheses by each number in the second parentheses. Then multiply the second term in the first parentheses by each number in the second parentheses:

x^3+10x^2+4x-x^2-10x-4
x^3+9x^2-6x-4

Answer 2

x^3 + 9x^2 - 6x - 4