Question 413019
{{{sqrt(45)*sqrt(10)}}}
{{{sqrt(9*5)*sqrt(2*5)}}}
{{{3*sqrt(5)*sqrt(5)*sqrt(2)}}}
{{{3*5*sqrt(2)}}}
{{{15*sqrt(2)}}}
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another way is:
{{{sqrt(45)*sqrt(10) = sqrt(450)}}}
{{{sqrt(450) = sqrt(225*2)}}}
{{{sqrt(225*2) = 15*sqrt(2)}}}