Question

Evaluate :

(2a-5b) (2a + 5b) (4a² +25b²)

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Answer 1

ANSWER

(2a-5b) (2a + 5b) (4a² +25b²)

= [(2a - 5b) (2a + 5b)] (4a² + 25b²)

= [(2a)² - (5b)²] (4a² + 25b²)

= (4a² - 25b²) (4a² + 25b²)

= (4a²)² - (25b²)²

= 16a⁴ - 625b⁴ Ans

Answer 2

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