Question

Obtain all the zeroes of the polynomial 4x*4+x*3-72x*2-18x,if two of its zeroes are 3√2 and 3√2.

Answer 1

4(3√2)4+(3√2)3-72(3√2)2-18(3√2) =48√2+9√2-432√2-54√2=57√2-486√2