Question

Simplify
3b(b-1)-2(b-2)(b+2)

Answer 1

Answer:

3b^2-3b-2[b(b+2)-2(b+2)]

3b^2-3b-2(b^2+2b-2b-4)

3b^2-3b-2b^2+8

Answer 2

Answer:

3b^2-3b-2(b^2-(-2^2))

3b^2-3b-2(b^2-4)

3b^2-3b-2b^2+8

3b^2-2b^2-3b+8

b^2-3b+8

Explanation:

This is a basic algebra question. We have to use the formula (a+b)(a-b)=(a-b)^2.

Multiplication within the brackets and solving the expression by completing the addition and subtraction, and we get a quadratic expression by the end of our solution.