Question

Find the discriminant of -x^2 + 7x -10 = 0
and using it find the roots of the equation.
*​

Answer 1

Answer:

as d= b² -4ac

quadratic equation =-x²+7x-10 as we take - sign it becomes x² -7x+10

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

by putting the values we get

d=49-40

d=9

as d>o so it has real roots and distinct (different)also

so by using quadratic formula. we get.

Step-by-step explanation:

X=-b±√d/2a

x=7±3/2

hence value of

d=2,5