Question 564946
Let's simplify the square roots as much as possible:
{{{sqrt(50)=sqrt(25*2)=sqrt(25)*sqrt(2)=5*sqrt(2)}}}
Similarly,
{{{sqrt(32)=4*sqrt(2)}}}
So we get,
{{{8*sqrt(50)-3*sqrt(32)=40*sqrt(2)-12*sqrt(2)=28*sqrt(2)}}}