Question

find (2n+5m)² using identity

Answer 1

the identity used is (a+b)²

(a+b)²=a²+b²+2ab

(2n+5m)²=4n²+25m²+20mn

Answer 2

hii matè


.↪✌↩.

⤵⤵here is ur answer ⤵⤵

→(2n+5m)²

↪using (a+b)² = a²+2ab+b²↩

→ (2n)²+2(2n)(5m)+(5m)²

Àn§wEr î§

⏬⏬

→4n²+20nm+25m²←

↪hope it helps↩