Multiply and simplify where possible. $\sqrt { 8 } \sqrt { 20 }$
A) $10 \sqrt { 10 }$
B) $2 \sqrt { 10 }$
C) $4 \sqrt { 10 }$
D) $10 \sqrt { 2 }$
E) $8 \sqrt { 10 }$

Question

Quizplus · Accepted Answer

When multiplying square roots, you can multiply the numbers under the roots together and then simplify. $\sqrt{8} \times \sqrt{20} = \sqrt{8 \times 20} = \sqrt{160}$. Simplifying $\sqrt{160}$ gives $\sqrt{16 \times 10} = \sqrt{16} \times \sqrt{10} = 4\sqrt{10}$.

Multiply and Simplify Where Possible 820\sqrt { 8 } \sqrt { 20 }8​20​

Multiply and Simplify Where Possible $\sqrt { 8 } \sqrt { 20 }$