Factorise 121a² + 88ab + 16b²
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Answer:
121a² + 88ab + 16b²
( 11a ²) - 2 × 11a × 4b + ( 4b²)
( 11a - 4b ) ²
Therefore , 121a² + 88ab + 16b² = ( 11a - 4b ) ²
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