Question

show that one is not a zero of polynomial 4 x power 3 + 2 x ki power 2 minus 5 x + 1

Answer 1

P(x) = 4(x)3 + 2(x)2 - 5x +1
        = 4(1)3 + 2(1)2 - 5(1) + 1
        =  4 + 2 - 5 +1
        =  6 - 4
        = 2