Question

find the descriminates of quadratic equation 4x²-ax+2=0
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Answer 1

Step-by-step explanation:

4x² - ax + 2 = 0

D = (-a)² - 4.4.2.

D = a² - 32.

It determines whether a quadratic equation has real roots or not.

Answer 2

Step-by-step explanation:

4x²-ax+2=0

Disc= (b)²-4ac

      =(-a)²-4(4)(2)

      =a²-32

If the roots are equal, then the following needs to be followed . if roots are greater than zero, the below is not applicable then.

Shift it to right side:

=a²=32

=>a=$4\sqrt{2}$

Now discriminant:

=(b)²-4ac

=(-$4\sqrt{2}$)²-4(4)(2)

=32-32

=0