Question

if one zero of the quadratic polynomial x²+3x+k is 2 than the value of k is​

Answer 1

${2}^{2} + 3(2) + k \\ 4 + 6 = k \\ 10 = k$

hope these answers is correct

Answer 2

Explanation:

2^2+3(2)+k=0

4+6=k

10=k