1.

\sqrt 18 %2B \sqrt 55 - \sqrt 32 %2B \sqrt 16 - 9 !

Answer»

√18+√55-√32+√16as √16=4√18+√55-√32+4√18+√55-√36√36=6√18+√55-6√18+√49√49=7√18+7√25=5



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