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Simplify -2sqrt8 plus 2sqrt2 - 3sqrt18?

Updated: 4/28/2022

Wiki User

∙ 15y ago

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-2 sqrt(8) + [ 2 sqrt(2) - 3 sqrt(18) ] = -2 sqrt (4 x 2) + 2 sqrt(2) - 3 sqrt (9 x 2) = -2 (2) sqrt(2) + 2 sqrt(2) - 3 (3) sqrt(2) = -4 sqrt(2) + 2 sqrt(2) -9 sqrt(2) = -11 sqrt(2)

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