Math, asked by preetyboro01, 4 days 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)

Hope this may help you

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