Question

8.4 add, subtract, and multiply radical expressions score: 0.8/22 answered: 1/22 question 2 simplify: 3√3 + 5√3 = question help: video written example submit question jump to answer

Explanation:

Step1: Combine like - terms

Since both terms $3\sqrt{3}$ and $5\sqrt{3}$ have the same radical part $\sqrt{3}$, we can add the coefficients.
$(3 + 5)\sqrt{3}$

Step2: Calculate the sum of coefficients

$3+5 = 8$, so $(3 + 5)\sqrt{3}=8\sqrt{3}$

Answer:

$8\sqrt{3}$