Math, asked by nimisha22061983, 5 months ago

Factorise 9x²-42xy+49y²

Answers

Answered by kalyan84

1

Hi

9x²-42xy+49y²

=(3x)²-2×3x×7y+(7y)²

=(3x-7y)²

=(3x-7y)(3x-7y)

hope it will be helpful to you

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