SOLUTION: factor completely remember to look forst for common factor. check by multiplying. If a polynomial is prime state this. a^2-9a+20

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: factor completely remember to look forst for common factor. check by multiplying. If a polynomial is prime state this. a^2-9a+20      Log On


   



Question 592184: factor completely remember to look forst for common factor. check by multiplying. If a polynomial is prime state this.
a^2-9a+20

Found 2 solutions by nerdybill, stanbon:
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
a^2-9a+20
factors out to be:
(a-4)(a-5)

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
a^2-9a+20
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= a^2-5a-4a+20
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= a(a-5)-4(a-5)
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= (a-5)(a-4)
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Cheers,
Stan H.
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