CPM Homework Help : CCA2 Problem 10-175

10-175.

Use the pattern for $(a + b)^3$ to expand $(2x - 3)^3$ .

Hint:

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

Answer:

$8x^3 - 36x^2 + 54x - 27$