Question 840974
Pull out common factors.
{{{sqrt(27)=sqrt(3*9)=3*sqrt(3)}}}
{{{sqrt(75)=sqrt(3*25)=5*sqrt(3)}}}
{{{sqrt(12)=sqrt(3*4)=2*sqrt(3)}}}
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{{{ sqrt(27)+sqrt(75)-sqrt(12) =3*sqrt(3)+5*sqrt(3)-2*sqrt(3)}}}
{{{ sqrt(27)+sqrt(75)-sqrt(12) =6*sqrt(3)}}}