Multiply and simplify, if possible. $3 \sqrt { 3 } \sqrt { 15 }$
A) $3 \sqrt { 44 }$
B) $3 \sqrt { 5 }$
C) $9 \sqrt { 5 }$
D) $9 \sqrt { 42 }$
E) $3 \sqrt { 43 }$

Question

Quizplus · Accepted Answer

Multiplying the given expression $3 \sqrt{3} \times \sqrt{15}$ gives $3 \sqrt{3 \times 15}$ which simplifies to $3 \sqrt{45}$. Further simplification yields $3 \sqrt{9 \times 5}$, which can be written as $3 \times 3 \sqrt{5}$, resulting in $9 \sqrt{5}$.

Multiply and Simplify, If Possible 33153 \sqrt { 3 } \sqrt { 15 }33​15​

Multiply and Simplify, If Possible $3 \sqrt { 3 } \sqrt { 15 }$