Question 256869
Let x be the first number and x+1 be the second number. We get
{{{x(x+1) = 72}}}
using distributive property, we get
{{{x^2 + x = 72}}}
set equation = 0 to get
{{{x^2 + x - 72 = 0}}}
factoring, we get
{{{(x+9)(x-8) = 0}}}
x = -9
or
x = 8
so we have an answer is
(8,9)
or
(-9,-8)