Answer:
[tex]2\sqrt{5}[/tex]
Step-by-step explanation:
[tex]\sqrt5-\sqrt{20}+\sqrt{45}[/tex]
It is the same process as in the last problem.
[tex]\sqrt5-2\sqrt{5}+3\sqrt{5}[/tex]
Your correct answer is 2√5
√5 − √20 + √45 = 2√5
