1. 25x^squared-36y^squared
2. 4x^squared-12x+9
3. 10x^2-90
4. 5x^cubed-35x^squared-150x
someone please help I'm lost
2) it will start off as (2x )(2x ) You will have to figure out the factors of 9 that when I multiply each by 2x they will add or subtract to be 12x need sign in front
3) Take out a 10
10(x^sqrd-9) break that up, factors of 9 have to add or subtract to be 0
4) Take out a 5x(x^2-7x-30) break up whats in the ()