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?

x2 + x – 72 = 0
x2 + x + 72 = 0
x2 + 2x – 72 = 0
x2 + 2x + 72 = 0

Answer 1

Answer:

Step-by-step explanation:

x2 + x – 72 = 0

factors are -9 and 8.

Answer 2

Answer:

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