SOLUTION: the largest root of an equation (x-1)(x-1)=4x-7

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: the largest root of an equation (x-1)(x-1)=4x-7      Log On


   

Question 18557: the largest root of an equation (x-1)(x-1)=4x-7
Answer by xcentaur(357) About Me  (Show Source):
You can put this solution on YOUR website!
(x-1)(x-1)=4x-7
(x-1)^2=4x-7
x^2+1-2x=4x-7
x^2+1-2x-4x+7=0
x^2-6x+8=0
(x-4)(x-2)=0
x=4,2
Larger root is 4
That is your answer


Hope this helps,
Prabhat