Question

Simplify –(5x3 + x2) + 4(x3 – 3x2). Show your work.

Answer 1

Explanation:

-(5x³+x²)+4(x³-3x²)

=-5x³-x²+4x³-12x²

=-x³-13x²

Answer 2

x^3 - 13x^2.

Explanation:

–(5x3 + x2) + 4(x3 – 3x2) Removing the brackets:-

= -5x^3 - x^2 + 4x^3 - 12x^2

= -5x^3 + 4x^3 - x^2 - 12x^2

= x^3 - 13x^2.