### Home > A2C > Chapter 12 > Lesson 12.4.1 > Problem12-162

12-162.

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

Recall question 12-156 from the classwork.
How did your team write $\left(a + b\right)^{3}$ in the expanded form?

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

$8x^{3} − 36x^{2} + 54x − 27$