Question

. Find: (3ab + 4b)2 – (3ab – 4b)2​

Answer 1

16b

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Find: 2(3ab + 4b) - 2(3ab - 4b)

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2(3ab + 4b) - 2(3ab - 4b)

$\longrightarrow$ 6ab + 8b - 6ab + 8b

$\longrightarrow$ 16b ans.

Therefore, Required answer $\rightarrow$ 16b

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