$ions$ $c$ Read each item carefully. Shade the letter that corresponds to your choice on your answer $shcc1$
Which of the $fo1losy^{ing}$ is an example $0a$ quadratic equation?
A. $2x^{2}$ $-x>3$ $B$ $2x^{2}$ - $52$ $-$ - $5$ $=$ $0$ $C$ $5x-5=0$ $D$ $2x^{4}+1=0$
$21$ Which of the $fo1losyina$ quadratic eouations