using identities find (6x + 7y) 2
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Step-by-step explanation:
(6x + 7y) ²
We will use this identity : (a+b)² = a² + 2ab + b²
= 6x² + 2 (6x) (7y) + (7y)²
= 36x² + 84xy + 49y²
May the answer helps you!!
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