Question 219094
{{{sqrt(18) = sqrt(2*9)}}}
{{{sqrt(2*9) = sqrt(2)*sqrt(9)}}}
{{{sqrt(2)*sqrt(9) = 3*sqrt(2)}}}
{{{sqrt(2) = 1.414}}}
{{{3*sqrt(2) = 3*1.414}}}
{{{3*1.414 = 4.243}}} answer
check:
{{{sqrt(18) = 4.243}}}
Square both sides
{{{18 = 18.0030}}} (error due to rounding off)