Answer:
Step-by-step explanation:
Sum = 6
Product = -72
Factors = 12 , (-6) {12 +(-6) = 6 & 12*(-6) = -72}
9a² + 6a - 8 = 9a² + 12a - 6a - 8
= 3a(3a + 4) - 2(3a + 4)
= (3a + 4)(3a - 2)
Hint: 9a² + 12a = 3a*a + 3a*4 = 3a(3a + 4)
-6a - 8 = -2 * 3a - 2 * 4 = -2(3a + 4)
