How do you simplify #(15x^2 - 9x + 9) - (13x^2 + 15x + 5) - (-16x^2 + 20x + 16) - (-7x^2 + 10x - 10)#?
1 Answer
Jun 9, 2015
The answer is
Explanation:
Go from left to right. A negative sign in front of a set of parentheses changes the signs of the numbers inside the parentheses.
Gather like terms.
Simplify.