+0

# algbera 2b

+1
165
1
+19

how do u slove 2x^2-3x-9

May 15, 2018

#1
+1

$$2x^2-3x-9 = 2x^2-6x + 3x -9 = 2x(x-3) + 3(x-3) = (2x+3)(x-3)$$

Alternatively, I could have used the quadratic formula. Anyway, the above equation dictates that the two solutions are $$-\frac{3}{2} \& 3$$

.
May 15, 2018