Problem: 15xsquared+70x-25
factoring trinomials by trial and error for my
intermediate math class in college
15x^2 + 70x - 25
There are two ways to factor this expression.
(15x - 5)(x + 5)
15x^2 + 75x - 5x - 25
15x^2 + 70x - 25
(3x - 1)(5x + 25)
15x^2 + 75x - 5x - 25
15x^2 + 70x - 25