The correct option is C −12,−52
We know that for a quadratic equation ax2+bx+c=0
sum of roots = −ba & product of roots =ca
Comparing 2x2+x−5=0 with ax2+bx+c=0, we have
a = 2, b = 1, c = -5
Hence, sum of roots =−ba = −12
and product of roots =ca = −52 = −52