Question

using identity simplify (5p-3q)^2

Answer 1

Answer:

25p²-30pq+9q²

Explanation:

(5p-3q)² =

(5p)²-2(5p)(3q)+(3q)²

25p²-30pq+9q²

it has converted by the rule

(a-b)² = a²-2ab+b²

hope it helps.

Answer 2

Answer:

$Here, \: \: I \: \: have \: \: used \: \: below \: \: identity : \\ {(a - b)}^{2} = {a}^{2} - 2ab + {b}^{2}$

Explanation:

${(5p - 3q)}^{2} \\ = {(5p)}^{2} - 2(5p)(3q) + {(3q)}^{2} \\ = 25 {p}^{2} - 30pq + 9 {q}^{2}$