SOLUTION: (x-5)squared-x=30

Question 267913: (x-5)squared-x=30
Answer by unlockmath(1688) (Show Source): You can put this solution on YOUR website!
Hello,
I assume you want to solve this. (x-5)^2-x=30
Let's expand this out to:
x^2-10x+25-x=30 Combine terms and subtract 30 from both sides to get:
x^2-11x-5=0
We'll need the quadratic formula to solve this:
Entering the values looks like this:
{x = (+11 +- sqrt( 121+20 ))/(2) This comes out to be
x=11.44 and
x=-.437 These are rounded off.
Plug these answers into the original to see if they work.
RJ
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www.math-unlock.com
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