Question 26615
{{{(2/7)sqrt(147) - (1/3)sqrt(27) - sqrt(48)}}}


OK... first we need to convert every sqrt number into some useful factors...so...


48 --> 12x4 --> 3x4x4 --> 3x16
27 --> 9x3
147  --> 49x3


so, {{{(2/7)sqrt(49*3) - (1/3)sqrt(9*3) - sqrt(16*3)}}}
{{{(2/7)sqrt(49)sqrt(3) - (1/3)sqrt(9)sqrt(3) - sqrt(16)sqrt(3)}}}
{{{(2/7)7sqrt(3) - (1/3)3sqrt(3) - 4sqrt(3)}}}
{{{2sqrt(3) - sqrt(3) - 4sqrt(3)}}}
{{{-3sqrt(3)}}}


jon.