Respuesta :

BearisaMathTeacher
X=12 and c=20 hope that helps please give Brainliest if it does
loneguy

[tex]\text{If the quadratic equation is a perfect square, then}\\\\~~~~~\text{Discriminant} = 0\\\\\implies 12^2 - 4 \cdot 1 \cdot c = 0 \\\\\implies 144 -4c =0\\\\\implies 4c = 144\\\\\implies c = \dfrac{144}4\\\\\implies c = 36[/tex]

good job