factorize 49asq.+70ab+25bsq.
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● Factorisation ●
49a² + 70ab + 25b²
= (7a)² + 2 × (7a) × (5b) + (5b)² [using identity : - (a + b)² = a² + 2ab + b²]
= (7a + 5b)²
= (7a + 5b)(7a + 5b)
49a² + 70ab + 25b²
= (7a)² + 2 × (7a) × (5b) + (5b)² [using identity : - (a + b)² = a² + 2ab + b²]
= (7a + 5b)²
= (7a + 5b)(7a + 5b)
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Answer:
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