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?
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x2 + x - 72 = 0
x2+x+ 720
x2 + 2x - 72 = 0
x2 + 2x + 72 = 0

Answer 1

x^2+x-72=0

Explanation:

Answer 2

Explanation:

hello :

the equation is : x2 + x - 72 = 0

(x+9)(x-8) =0

x-8 = 0 because x+9≠0 ( x is : integer number)

the smaller integer is:8