A) \( \Large \left(a-2\right) \left(a+3\right) \left(a+5\right) \) |
B) \( \Large \left(a+2\right) \left(a+3\right) \left(a-5\right) \) |
C) \( \Large \left(a+2\right) \left(a-3\right) \left(a-5\right) \) |
D) \( \Large \left(a+2\right) \left(a-3\right) \left(a+5\right) \) |
D) \( \Large \left(a+2\right) \left(a-3\right) \left(a+5\right) \) |
\( \Large a^{3}+4a^{2}-11a-30 \)
= \( \Large \left(a+2\right) \left(a^{2}+2a-15\right) \)
= \( \Large \left(a+2\right) \left(a^{2}+5a-3a-15\right) \)
= \( \Large \left(a+2\right)\left[ a \left(a+5\right)-3 \left(a+5\right) \right] \)
= \( \Large \left(a+2\right) \left(a+5\right) \left(a-3\right) \)