Question

for what value of k for which the
equation 2x² 10×+ k has real and equal
Roots,​

Answer 1

Step-by-step explanation:

a=2,b=−10,c=k

⇒ It is given that the roots are real and equal.

∴ b

2

−4ac=0

⇒ (−10)

2

−4(2)(k)=0

⇒ 100−8k=0

⇒ 8k=100

=> k=100/8

=> k=25/2

=> k=12.5