SOLUTION: {{{27a^3b-12ab}}}

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Question 113568This question is from textbook Algebra, structure and meathod, book 1
: 27a%5E3b-12ab This question is from textbook Algebra, structure and meathod, book 1

Found 2 solutions by stanbon, MathLover1:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
27a^3b-12ab
= 3ab(9a^2-4)
= 3ab(3a-2)(3a+2)
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Cheers,
Stan H.

Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
I guess you need to simplify this expression.
27a%5E3b-12ab.....factor out common 3ab
3ab%289a%5E2-4%29......9=3%5E2 and 4=2%5E2, so we can substitute it
3ab%28%283a%29%5E2-+2%5E2%29.....factorize %283a%29%5E2-+2%5E2; it is equal to %283a-+2%29%283a%2B2%29
3ab%283a-+2%29%283a+%2B+2%29