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