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This is not a difficult factorisation, as it is merely a normal factorisation with "a" stuck on the end of each number. 25a(2) - 20ab + 4b(2) (2b-5a)(2b-5a) This is: 2bx2b=4b(2) 2bx-5a=-10ab (twice) -5ax-5a=25a

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โˆ™ 2008-01-09 17:46:31
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Q: Factor 25a squared minus 20ab plus 4b squared?
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