Question

√80 - √125 + √45?

Answer 1

\[4\sqrt{5}+5\sqrt{5}+3\sqrt{5}\]
Makes it easier now

Answer 2

But that would be 12√5 and the multiple choices are as followed:
A.2√5
B.5√2
C.-3√5
D.3√5

Answer 3

Factor each of the radical
\[\sqrt{4 \times 4\times 5}-\sqrt{5\times 5 \times 5}+\sqrt{3 \times3 \times5}\]
\[4\sqrt{5}-5\sqrt{5}+3\sqrt{5}\]
I think you can do now

Answer 4

\[\sqrt{80} - \sqrt{125} + \sqrt{45}\]\[=\sqrt{16\times5}-\sqrt{25\times5}+\sqrt{9\times5}\]

Answer 5

Thanks everyone

Answer 6

Oops I meant 4radical5 -5radical5 + 3radical5 SILLY ME :P