Question

if x= 1 is a zero of a polynomial f(x) = x^3-2x^2+4x+k . write the value of k​

Answer 1

SOLUTION ☺️

Given x= 1

So,Putting this cubic polynomial

=)x^3-2x^2+4x+k=0

=)(1)^3-2(1)^2+4(1)+k=0

=) 1-2+4+k=0

=) -2+5+k=0

=) 3+k=0

=) k= -3 [answer]

hope it helps ✔️☺️