Math, asked by preetyboro01, 1 month ago

Factorise 9y sqr - 49z sqr

Answers

Answered by nithya12333

0

Answer:

$9 {y}^{2} - 49 {z}^{2} \\ {(3y)}^{2} - {(7z)}^{2} \\ we \: know \: that \: {x}^{2} - {y}^{2} = (x + y)(x - y) \\ = (3y + 7z)(3y - 7z)$

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