Factor x2 - x - 72

a (x - 9)(x + 8)

b (x + 9)(x - 8)

c (x - 36)(x - 36)

d (x - 9)(x - 8)

A (x - 9)(x + 8)

Step-by-step explanation:

x^2 - x - 72

As you know -72 = -9 * 8 and -9 + 8 = -1

So factor:

= (x - 9)(x + 8)

A (x - 9)(x + 8)

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step-by-step explanation: