Each of x, y and z is a rational number such that: x + y * ³√2 + z * ³√4 = 0.

Prove that x=y=z=0 is the only possible solution to the above equation.

(In reply to Solution by Harry)

(Still can't get the extra font facility to give me a root sign..)

Harry, when you add a comment you have a tool bar above your text box. The button bearing the "Pi" & "Sigma" has some useful symbols, go there.

ΔπΣ√

ΔπΣ√

Edited on October 16, 2009, 2:05 am

Posted by brianjn on 2009-10-15 20:11:43