Question

expand using suitable identity bracket minus (2 X + 55 - 3 z)²

Answer 1

$<b>Heya mate. (^_-). Solution below.$
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• (2x + 55 + 3z)²



=>>> Using identity : (a + b + c)² = a² + b² + c² + 2ab + 2bc + 2ca, we get,


= [ (2x)² + (55)² + (3z)² + (2 × 2x × 55) + (2 × 55 × 3z) + (2 × 3z × 2x) ]


= [ 4x² + 3025 + 9z² + 220x + 330z + 12xz ]


$<marquee>Hope the answer helps you.</marquee>$
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Thank you... ;-)