Question

2(m + 2n)^2 +5(m + 2n) + 2​

Answer 1

Answer:

(3m−2n)(2m−3n)

at [m=1] & [n=−1]

now

=[3×1−2(−1)][2×−3(−1)]

[3+2][2+3]

5×5

=25

Answer 2

Answer:

2m^2+4mn+4n^2+5m+10n+2

Step-by-step explanation:

2(m+2n)^2+5(m+2n)+2

=2[m^2+2×m×2n+4n^2]+5m+10n +2

=2m^2+4mn+4n^2+5m+10n+2