SOLUTION: I need some help Solve the following equations by factoring or by any of the techniques: (x-1)^2=7 and also x^2-9x-4=6 Thanks

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: I need some help Solve the following equations by factoring or by any of the techniques: (x-1)^2=7 and also x^2-9x-4=6 Thanks       Log On


   

Question 91671: I need some help
Solve the following equations by factoring or by any of the techniques:
(x-1)^2=7
and also x^2-9x-4=6
Thanks
Answer by mathispowerful(115) About Me  (Show Source):
You can put this solution on YOUR website!
%28x-1%29%5E2=7
take square root on both sides
x - 1 = +%22%2B%2F-%22+sqrt%287%29
solve this equation
x+=+1+%2B+sqrt%287%29 or
x+=+1+-+sqrt%287%29


x%5E2-9x-4=6
x%5E2-9x-10=0
(x-10)(x+1) = 0
x = 10 or
x = -1