Question

simplify.
$6\sqrt{z} - 3\sqrt{z} = \square$

Explanation:

Step1: Identify like terms

Both terms \(6\sqrt{z}\) and \(3\sqrt{z}\) have the same radical part \(\sqrt{z}\), so they are like terms.

Step2: Combine like terms

Subtract the coefficients: \(6 - 3 = 3\), so \(6\sqrt{z}-3\sqrt{z}=3\sqrt{z}\).

Answer:

\(3\sqrt{z}\)