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?

Answer 1

x(x+1) =72
2x+x=72
3x=72
x=72÷3
x=24
so , the required no is 24

Answer 2

x=8
x²+x=72
8²+8=72
64+8=72
72=72