(3m–n)²– ( m – 2n )²
Answers
Answered by
1
Step-by-step explanation:
(3m)²–2.3m.n+(n)²–(m)²–2.m.2n+(2n)²
9m²–6mn+n²–m²–4mn+4n²
9m²–m²–6mn–4mn+n²+4n²
8m²+10mn+5n²
Similar questions
Math,
3 hours ago
Accountancy,
3 hours ago
Math,
6 hours ago
English,
6 hours ago
Math,
8 months ago
Social Sciences,
8 months ago