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#= -ysqrt2#
Extract any roots that you can.
#5sqrt(2color(red)(y^2)) - 3ysqrt(color(blue)(4)xx2)" "larr (8 = 4xx2)#
#=5color(red)(y)sqrt2-3 xx color(blue)(2)ysqrt2#
#=5ysqrt2 -6ysqrt2" "larr# these are like terms
How do you simplify #5sqrt(2y^2)-3ysqrt8#?
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