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Find the square of:(i) \( (a+4 b) \) |
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Answer» by using formula:(a+b)² = a² + b² + 2ab we get: a² + (4b)² + 2(a)(4b) =a² + 16b² + 8ab (a+4b)2 = (a)2 +2(a)(4b) + (4b)2 => a2 +8ab + 16b2 |
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