SOLUTION: 1. 9-x2
2.4x^2+81-36x
3.4y^2+16y+16
4.x^2-25
x+5
Algebra.Com
Question 87026: 1. 9-x2
2.4x^2+81-36x
3.4y^2+16y+16
4.x^2-25
x+5
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
1. 9-x^2 = (3-x)(3+x)
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2.4x^2+81-36x = 4x^2-36x+81 = (2x-9)(2x-9)
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3.4y^2+16y+16 = (2y+4)(2y+4)
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4.x^2-25 = (x-5)(x+5)
-----------------
Cheers,
Stan H.
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