Math, asked by swastitiwari21, 7 months ago

4x2 - 9(2x - y)?4 एक्स की पावर 2 - 9 ब्रैकेट में 2 एक्स माइनस वाई की पावर 2 ​

Answers

Answered by anjukrishusachin
2

Step-by-step explanation:

 {4x}^{2}  - 9(2x - y) ^{2}  \\  = (2x)^{2}  - {(3(2x - y))}^{2}  \\  {{a}^{2}  -  {b}^{2}  = (a + b)(a - b) }\\  = (2x + 3(2x - y)) \: (2x  -  3(2x - y)) \\  = (2x + 6x - 3y) \: (2x  -  6x  +  \: 3y) \\  = (8x - 3y) \: ( - 4x + 3y)

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