Question

(M+2n)2 please Expand​

Answer 1

Answer:

(m + 2n + 3r)2 =(m)2 +(2n)2 +(3r)2 + [ 2 ×(m)× (2n)] + [ 2 ×(2n)×(3r)] + [ 2 ×(m)×(3r)]

{ ∵(a + b +c)2 = a2 + b2 + c2 + 2ab + 2bc + 2ac }

= m2 + 4n2 + 9r2 + [ 4mn ] + [ 12nr ] + [6mr ]

= m2 + 4n2 + 9r2 + 4mn + 12nr + 6mr

Answer 2

Step-by-step explanation:

(m+2n)² ( by identity (a+b)²=a²+b²+2ab)

(m+2n)²=m²+(2n)²+2(m)(2n)

m²+4n²+4mn