Answer:
x = -4/5 and x = 3/5.
Step-by-step explanation:
The coefficient of x^2 is 25, which is 5 * 5. 5 * -3 = -15, and 5 * 4 = 20. 20 - 15 = 5.
So...
25x^2 + 5x - 12 = 0
(5x + 4)(5x - 3) = 0
5x + 4 = 0
5x = -4
x = -4/5
5x - 3 = 0
5x = 3
x = 3/5
So, x = -4/5 and x = 3/5.
Hope this helps!
