Math, asked by kalyanichaware18, 3 months ago

evaluate -(-49-a2)-5a2

Answers

Answered by ItzMarvels

21

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♧Question♧

evaluate - ( - 49 -.a²) - 5a²

♧Answer♧

➠ - ( - 49 - a²) - 5a²
➠49 + a² - 5a²
➠49 - 4a²
➠(7 - 2a) (7 + 2a)

☆Concept used:-

➠a² - b² = (a - b)(a + b)

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