Question

-square root of 27 - 3square root of 45-square root of 20+2square root of 45
-√27 - 3√45 - √20 + 2√45
= -3√3 - 9√5 - 2√5 + 6√5
= -5√5 - 3√3
-3√18+3√8-√24

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