Question

find the value of discriminant for the quadratic equation x square +10x - 7=0

Answer 1

Answer:11.31

Step-by-step explanation:

Discriminant=root(b^2-4*a*c)

Where in given question

a=1,b=10,c=-7

So,D=root(10^2-(4*1*-7))

So,D=11.31

Answer 2

D=10²-(4*1*-7)=100+28=128 so D>0 so roots are real