SOLUTION: xsquared-7x+12-7

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Question 41159: xsquared-7x+12-7
Answer by tutorcecilia(2152) About Me  (Show Source):
You can put this solution on YOUR website!
You will need to use the quadratic formula.
First simplify the expression:
x^2 -7x+5
Plug it into the Q.F.:
[-(-7) +- sq. root (-7)^2 - 4(1)(5)]/2(1)

[7 +- sq. root 49 - 20]/2 =
[7 +- sq. root 29]/2 =

You will have two solutions
[7 - sq. root 29]/2
and
[7 + sq. root 29]/2



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