Question

multiply (3p-4q) (3p-4q)

Answer 1

Hello!

$(3p - 4q)(3p - 4q)$

$(3p - 4q) ^{2}$

Using identity :

$(a - b) ^{2} = {a}^{2} - 2ab + {b}^{2}$

$(3p - 4q) ^{2}$

$(3p) ^{2} - 2(3p)(4q) + (4q) ^{2}$

$9 {p}^{2} - 24pq + 16 {q}^{2}$

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