Question

Simplify:
4[2a(3a - b) + 3ab)] + 5[3b(a + 2b) - 4ab]

Answer 1

Work your way from the inside out of the parentheses and brackets using order of operations. Combine like terms as needed until there are no brackets or parentheses left.

Your first step should look like this

4[6a^2 - 2ab + 3ab] + 5[3ab + 6b - 4ab]

Distribute and combine like terms from there.