Factor
- $21 m^{2}-17 r^{3}$ A) $2\left(10 m^{2}+8 r^{3}\right)$ B) $\mathrm{m}^{2}(21-17 \mathrm{~m})$ C) No Common Factor
D)

Multiple Choice

Factor.
- $21 m^{2}-17 r^{3}$

A) $2\left(10 m^{2}+8 r^{3}\right)$
B) $\mathrm{m}^{2}(21-17 \mathrm{~m})$
C) No common factor
D) $3\left(7 m^{2}-5 r^{3}\right)$