Question

NA MULTIPLICAÇÃO 2√2 x (√8 - √2) , TEREMOS : ( Me mande o calculo prfv ) ! OBG

Answer 1

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$2 \sqrt{2} .( \sqrt{8} - \sqrt{2} )= \\ \\ 2 \sqrt{2} . \sqrt{8} -2 \sqrt{2} . \sqrt{2} = \\ \\ 2 \sqrt{16} -2 \sqrt{4} = \\ \\ 2 \sqrt{2^4} -2 \sqrt{2^2} = \\ \\ 2.2^2-2.2= \\ \\ 2.4-4= \\ \\ 8-4=\fbox{ 4 }$