Question

For what set of values of r does the equation rx^2 − 8x + 2 = 0 have two real roots?​

Answer 1

I think this will help you ☺️☺️

Answer 2

Answer:

r=8

Step-by-step explanation:

rx²−8x+2=0

Comparing the equation ax²+bx+c=0

we get, a=r, b=-8 and c=2

∆=0-----------(given)

∆=b²-4ac

0=(-8)²-4×r×2

0=64-8r

8r=64

r=64/8

r=8