Question 429438
{{{sqrt(12) = sqrt(4*3) = sqrt(4)*sqrt(3) = 2sqrt(3)}}}
{{{sqrt(75) = sqrt(25*3) = sqrt(25)*sqrt(3) = 5sqrt(3)}}}
{{{3sqrt(13) + 7sqrt(13) = 10sqrt(13)}}}
{{{sqrt(90) - sqrt(10) = 3sqrt(10) - sqrt(10) = 2sqrt(10)}}}
{{{sqrt(75a^3) + a*sqrt(12a) = 5a*sqrt(3a) + 2a*sqrt(3a) = 7a*sqrt(3a)}}}