If one of the zeroes of the quadratic polynomial $x^{2}+3 x+k$ is 2 , then the value of $k$ is\

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Professor PC Thomas Classes · Answer

(b) : Given, 2 is a zero of the polynomial
$ p(x)=x^{2}+3 x+k . $
 $	herefore \quad p(2)=0 \Rightarrow(2)^{2}+3(2)+k=0 \Rightarrow 4+6+k=0$\ $\Rightarrow \quad 10+k=0 \Rightarrow k=-10$\