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Math·Advanced Math·Nonlinear equations in one variable and systems of equations in two variables

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$y=-8x+26$
$y=2x^2+16$
The graphs of the equations in the given system of equations intersect at the point $(a,b)$ in the $xy$-plane. What is a possible value of $a$?

A

$-5$

B

$-1$

C

$2$

D

$5$