Roots of the quadratic equation 5x2−6x+7 are

A
Rational and equal
B
Imaginary
C
Ration and not equal
D
None of the above

Solution:

$5 x^{2} - 6 x + 7 W h e r e a = 5, b = - 6, c = 7 b^{2} - 4 a c = {(- 6)}^{2} - 4 (5) (7) = 36 - 140 = - 104 < 0 ∴ r o o t s a r e i m a g i n a r y$

Roots of the quadratic equation $5 x^{2} - 6 x + 7$ are

Solution:

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