Question

Simplify: (5p – 3q)² + 30pq​

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

Step-by-step explanation:

Answer 2

$= (5p \: – \: 3q)² + 30 \: pq$

$= {5p}^{2} + {3q}^{2} - 2 \times 5p \times - 3q + 30pq$

$= 25 {p}^{2} + {9q}^{2} + 30pq + 30pq$

$= 25 {p}^{2} + {9q}^{2} + 60pq$