Question 399362
{{{5*sqrt(32) - 7*sqrt(8)=5*sqrt(16*2)-7*sqrt(4*2)}}} 
{{{5*sqrt(32) - 7*sqrt(8)=5*4*sqrt(2)-7*2*sqrt(2)}}} 
{{{5*sqrt(32) - 7*sqrt(8)=20*sqrt(2)-14*sqrt(2)}}}
{{{5*sqrt(32) - 7*sqrt(8)=highlight(6*sqrt(2))}}}
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{{{2*sqrt(15xy^3)*3*sqrt(30x^3y^2)=6*sqrt(450x^(1+3)y^(3+2))}}}
{{{2*sqrt(15xy^3)*3*sqrt(30x^3y^2)=6*sqrt(450x^4y^5)}}}
{{{2*sqrt(15xy^3)*3*sqrt(30x^3y^2)=6*sqrt(225x^4y^2*(2y))}}}
{{{2*sqrt(15xy^3)*3*sqrt(30x^3y^2)=6*15x^2y*sqrt(2y)}}}
{{{2*sqrt(15xy^3)*3*sqrt(30x^3y^2)=highlight(90x^2y*sqrt(2y))}}}