Question 188640
2 (square root) 32 - (square root) 18
{{{2sqrt(32) - sqrt(18)}}}
= {{{2sqrt(16)*sqrt(2) - sqrt(9)*sqrt(2)}}}
= {{{2*4sqrt(2) - 3sqrt(2)}}}
= {{{8sqrt(2) - 3sqrt(2)}}}
= {{{5 sqrt(2)}}}