Question

*Expand the given equation: (2m + n + 5)²*

1️⃣ 4m + 2n +10
2️⃣ 4m² + n² + 25 + 4mn +10n + 20m
3️⃣ 4m + 20mn + 25
4️⃣ None of these​

Answer 1

Answer:

4m2+n2+25+4mn+10n+20m

is the answer

Answer 2

Answer:

2️⃣ 4m² + n² + 25 + 4mn +10n + 20m

Step-by-step explanation:

∴(a + b + c)2 = a2 + b2 + c2 + 2ab + 2bc + 2ca

then, (2m + n + 5)² = $4m^{2}$ + $n^{2}$ + 25 + 4mn + 10n + 10m