Question 395798

{{{5sqrt(32)-7sqrt(8)}}}


{{{5sqrt(4*4*2)-7sqrt(4*2)}}}


{{{5*2*2sqrt(2)-7*2sqrt(2)}}}


{{{20sqrt(2)-14sqrt(2)}}}


{{{sqrt(2) (20-14)}}}


{{{6sqrt(2) }}}



{{{(2sqrt(15xy^3))(3sqrt(30x^3y^2))}}}


{{{2y^2sqrt(15xy)*3x^2y(sqrt(30x))}}}


{{{6y^3x^2sqrt(15xy)(sqrt(30x))}}}.....since {{{sqrt(a*b)=sqrt(a)*sqrt(b)}}}, we have


{{{6y^3x^2sqrt(15xy*30x)}}}


{{{6y^3x^2sqrt(15xy*2*15x)}}}


{{{6y^3x^2sqrt(15^2x^2y*2)}}}


{{{6y^3x^2*15*x(sqrt(y*2))}}}


{{{90y^3x^3sqrt(y*2)}}}