Question

Find the value of $p$ such that quadratic equation $(p-12)x^2-2(p-12)x+2=0$ has equal.

Answer 1

$(p-12)x^2-2(p-12)x+2=0$

For quadratic equation to has equal roots

$b^2=4ac4(p-12{)}^2=4(p-12\left)\right(2)p-12=2p=2+12p=14$