Question

If one of the zeroes of the quadratic polynomial(k-1)x2+Kx+1 is 3,then find the value of k

Answer 1

Step-by-step explanation:

given quadratic equation is (k-1)x2+kx+1

also give that 3 is the zero of the quadratic polynomial.

p(x)=(k-1)x2+kx+1=0

p(3)=(k-1)x2+3k+1=0

=2k-2+3k+1=0

=2k-1+3k=0

=2k+k3=1

=5k=1

=k=1/5