Question

Simplify the following : (2x+5y)²+(2x- 5y)²

Answer 1

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$8 {x}^{2} + 50 {y}^{2}$

SOLUTION :-

${(2x + 5y)}^{2} + {(2x - 5y)}^{2} \\ ( {2x}^{2} +2(10xy)+ {5y}^{2} )+ ( {2x}^{2} -2(10xy)+{5y}^{2} ) \\ ( {4x}^{2} + 20xy + {25y}^{2} )+ ( {4x}^{2} - 20xy + {25y}^{2} ) \\ {8x}^{2} + {50y}^{2}$

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Answer 2

Step-by-step explanation:

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