SOLUTION: please help with this problem.
Solve the equation.
x^2 - x = 90
Algebra.Com
Question 6444: please help with this problem.
Solve the equation.
x^2 - x = 90
Answer by hamda(7) (Show Source): You can put this solution on YOUR website!
x^2 - x = 90
x^2 - x - 90 = 0
x^2 - 10x + 9x - 90 = 0
x(x - 10) + 9(x - 10) = 0
(x - 10)(x + 9) = 0
x = 10 , x = -9 (Answer)
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