Math, asked by devanandprasad2812, 5 months ago

25a²-4b²+28bc-49c². Multiplication wala chapter class 8th pseb board

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Answered by Anonymous

1

25a²-4b²+28bc-49c²

=(5a)²-[(2b)²-2(2b)(7c)+(7c)²]

=(5a)²-(2b-7c)²

=(5a+2b-7c)(5a-2b+7c)

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