Two consecutive positive even integers,the sum of whose squares is $340$.The quadratic equation to find the integers,is ______

Question

$\begin{array}{1 1}(A) \; x^2+x+42=0\\(B)\;x^2+x-42=0 \\(C)\;x^2-x+42=0 \\(D)\;x^2-x-42=0\end{array}$