Question

Without solving, comment upon the nature of roots of the following equations

7x² – 9x +2 =0

Answer 1

`7x^2 - 9x + 2 = 0`

a = 7, b = -9 and c = 2

∴ Discriminant = `b^2 - 4ac`

`= (-9)^2 - 4(7)(2)`

`= 81 - 56 = 25`

Since D > 0, then equation has two real and unequal roots