Question

If one zero of the quadratic polynomial Kx² + 2x + 3 is 3, then find the value of k.​

Answer 1

Answer:

x = 3

kx²+2x+3=0

k(3)²+2(3)+3=0

9k²+6+3=0

9k²+9=0

9k²= -9

k²= -9/9

k = 1