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How do you factor or group the following equation: 4m(4a-2b) -3n(4a-2b)?

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trini47 | Student, Grade 9 | (Level 1) Honors

Posted December 26, 2012 at 12:02 AM via web

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How do you factor or group the following equation: 4m(4a-2b) -3n(4a-2b)?

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embizze | High School Teacher | (Level 1) Educator Emeritus

Posted December 26, 2012 at 1:06 AM (Answer #1)

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Factor 4m(4a-2b)-3n(4a-2b):

If the question had been factor 4mx-3nx you probably would have factored out the greatest common factor of x getting x(4m-3n)

Here, let x=(4a-2b); note that this is a common factor.

So 4m(4a-2b)-3n(4a-2b)=(4a-2b)(4m-3n)

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