Question

Multiply (2m + 3)(m2 – 2m + 1).

A. 2m3 – m2 – 4m + 3
B. 2m3 – m2 – 8m + 3
C. 2m3 – 7m2 – 4m + 2
D. 2m3 – m2 – 10m + 3

Answer 1

(2m + 3)(m^2 - 2m + 1) = 
2m(m^2 - 2m + 1) + 3(m^2 - 2m + 1) =
2m^3 - 4m^2 + 2m + 3m^2 - 6m + 3 =
2m^3 -m^2 - 4m + 3 <===