Question

(6p-7q) (6p-7q)2 (a-b)2​

Answer 1

Step-by-step explanation:

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Answer 2

$\bold{(6p − 7q)(6p−7q)}$

$\bold{=(6p−7q)^2}$

$\bold{=(6p)^2 + (7q)^2 − 2(6p)(7q) }$

$\bold{[as, (a−b)^2 = a^2+b^2−2ab]}$

$\bold{=36p^2 + 49q^2 − 84pq}$