Answer :
Answer:
Step-by-step explanation:
Sum = 8
Product = -9
Factor = 9 , -1
y = x² + 8x - 9
= x² -1x + 9x - 9
=x(x - 1) + 9(x - 1)
= (x - 1)(x + 9)
Answer:
Step-by-step explanation:
Sum = 8
Product = -9
Factor = 9 , -1
y = x² + 8x - 9
= x² -1x + 9x - 9
=x(x - 1) + 9(x - 1)
= (x - 1)(x + 9)