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Question 174381:
m^4-n^4
8b²+24b+18
3x²18x-48
9x²+4y²
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! m^4-n^4
= (m^2+n^2)(m^2-n^2)
= (m^2+n^2)(m+n)(m-n)
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8b²+24b+18
= 2(4b^2 + 12b + 9)
= 2(4b^2 + 6b + 6b + 9)
= 2(2b(2b+3) + 3(2b+3))
= 2(2b+3)(2b+3)
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3x²+ 18x - 48
= (x-2)(3x+24)
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9x²+4y²
not factorable in the Real Number system.
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(3x+2iy)(3x-2iy) in the Complex number system.
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Cheers,
Stan H.
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