√20 - √45 + 3√18 + √72

Question

√20 - √45 + 3√18 + √72

Answer 1

{5*9} + \sqrt{9*2} + \sqrt{36*2} [/tex]

[tex]- \sqrt{5}+15 \sqrt{2} " alt=" \sqrt{5*4} - \sqrt

[tex]- \sqrt{5}+15 \sqrt{2} " align="absmiddle" class="latex-formula">