Math, asked by alphareturner112007, 8 months ago

fatorise 25(a + b)2 – 16(a - b)2

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Answered by anshpatel2491

2

Answer:

..........................................

Answered by mathdude500

2

Answer:

${(5(a + b))}^{2} - {(4(a - b))}^{2} \\ = {(5a + 5b)}^{2} - {(4a - 4b)}^{2} \\ = (5a + 5b + 4a - 4b)(5a + 5b - 4a + 4b) \\ = (9a + b)(a + 9b)$

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