Question 328577
{{{ 2* sqrt(20)-3* sqrt(45)+4* sqrt(8)}}}
{{{2*sqrt(4*5) - 3*sqrt(5*9) + 4*sqrt(4*2)}}}
{{{2*sqrt(4)*sqrt(5) - 3*sqrt(5)*sqrt(9) + 4*sqrt(4)*sqrt(2)}}}
{{{2*2*sqrt(5) - 3*3*sqrt(5) + 4*2*sqrt(2)}}}
{{{4*sqrt(5) - 9*sqrt(5) + 8*sqrt(2)}}}
{{{(4 - 9)*sqrt(5) + 8*sqrt(2)}}}
{{{-5*sqrt(5) + 8*sqrt(2)}}} answer
Since square roots can be either (+) or (-), there
are other valid solutions also:
{{{-5*(-sqrt(5)) + 8*sqrt(2)}}}
{{{5*sqrt(5) + 8*sqrt(2)}}} 2nd solution
and
{{{-5*sqrt(5) + 8*(-sqrt(2))}}}
{{{-5*sqrt(5) - 8*sqrt(2)}}} 3rd solution
and
{{{-5*(-sqrt(5)) + 8*(-sqrt(2))}}}
{{{5*sqrt(5) - 8*sqrt(2)}}} 4th soution