Question

solving quadratic equation 2ysquare - 9y - 195​

Answer 1

a=2 b=-9 c=-195

x=9+-✓(81-4*2*-195)/2*2

9+-✓(81+1560)/4

9+-✓(1641)/4

9+40.5/4

12.3

and

9-40.5/4

-31.5/4

-7.8