Question

How do i simplify the square root of 45?

Answer 1

\(\large\tt \begin{align} \color{black}{\sqrt{45}\\
=\sqrt{9\times 5}\\
=\sqrt{9}\times\sqrt{ 5}\\
=3\times\sqrt{ 5}\\
=3\sqrt{5}}\end{align}\)

Answer 2

thank you!!

Answer 3

pull out the perfect squares in the square root of 45
so for example you can do the square root of 9 and square root of 5
your final answer would be 3 square root 5