Question

In the following exercises, factor each expression using any method$7x^2-21x$

Short answer

The factors are$7x\left(x-3\right)$

Step-by-step solution

Step 1. Given Information

The binomial is $7x^2-21x$

Find the factor.

Step 2. Factor the binomial

Find the common factor

$$\begin{gathered} 7x^2-21x \\ 7x\left(x-3\right) \end{gathered}$$

Step 3. Check

Multiply the factor $7x\left(x-3\right)$

$7x^2-21x$