Math, asked by mahi80642, 4 months ago

multiply (3x-y) by (x+y) and verify the results for x=1 and y=(-2)

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Answered by Anonymous

4

$(3x - y) \times (x + y) \\ = (3(1) - ( - 2) )\times ((1) + ( - 2)) \\ = (3 + 2) \times (1 - 2) \\ = 5 \times - 1 \\ = - 5$

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