How do you solve x^ { 2} + x = 25+ x?

1 Answer
Jan 15, 2018

x = +-5

Explanation:

x^2 + x = 25 + x
x^2 + x - x = 25 + x - x
x^2 = 25
x = sqrt25 = +-5

It's +-5 because both 5^2 and (-5)^2 are equal to 25