Question

The product of two consecutive integers is 72. The equation x(x + 1) = 72 represents the situation, where x

represents the smaller integer. Which equation can be factored and solved for the smaller integer?
A.2+x - 72 = 0
B.0x2 + x + 72 = 0
C.O x²+2x - 72=0
D.2 + 2x + 72 = 0

Answer 1

a=70 b=-72 x=-37

Explanation:

A. 2+x-72=0

2+70-72=0

72-72=0

b.

0x2+x+72=0

0x2=0

x+72=0

-72+72=0

D.

2+2x+72=0

2+2(-37)+72=0

2+(-74)+72=0

-72+72=0