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)

i believe the answer is the polygon, heptagon.

answer: the answer is one

step-by-step explanation:

pemdas, in this situation there is no parenthesis or exponents so you go to multiplication, 1x1=1, then division 1/1= 1 then addition 1+1=2 then subtraction 2-1=1