Question

m2−3m−2=0 determine the nature of root of the following equation​

Answer 1

Step-by-step explanation:

i. x2 – 4x + 4= 0

Comparing the above equation with ax2 + bx + c = 0, we get

a = 1,b = -4, c = 4

∴ ∆ = b2 – 4ac

= (- 4)2 – 4 × 1 × 4

= 16 – 16

∴ ∆ = 0

∴ Roots of the given quadratic equation are real and equal.

ii. 2y2 – 7y + 2 = 0

Comparing the above equation with ay + by + c = 0, we get