Math, asked by 21pradyu, 5 months ago

K) 25(x + y)² - 16(x-y)^2

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Answered by Anonymous

$25 {(x + y)}^{2} - 16 {(x - y)}^{2} \\ \\ = > {[5(x + y)]}^{2} - {[4(x - y)]}^{2} \\ \\ = > {(5x + 5y)}^{2} - {(4x - 4y)}^{2} \\ \\ = > (5x + 5y + 4x - 4y)(5x + 5y - 4x + 4y) \\ \\ = > (9x + y)(x + 9y)$

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K) 25(x + y)² - 16(x-y)^2​

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K) 25(x + y)² - 16(x-y)^2