CPM Homework Help : INT3 Problem 10-186

Use the pattern for $\left(a + b\right)^{3}$ to expand $\left(3x – 2\right)^{3}$ .

Hint:

Substitute $3x$ for $a$ and $−2$ for $b$ and simplify.

Answer:

$27x^{3} − 54x^{2} + 36x − 8$