What is the value of the discriminant for the quadratic equation –3 = –x2 + 2x? discriminant = b2 – 4ac –8 4 8 16

16

Step-by-step explanation:

–3 = –x^2 + 2x

Lets rewrite the equation in the form  ax^2 +bx +c =0

Add 3 to each side

–3+3 = –x^2 + 2x+3

0 = -x^2+2x+3

a = -1  b=2   c=3

Using the discriminant

b^2 - 4ac

2^2 - 4(-1) (3)

4 +12

16

ANSWER

Discriminant=16

EXPLANATION

The given quadratic equation is

This is not in the general quadratic form.

We rewrite in the general quadratic form to obtain,

Comparing to

we have a=1, b=-2 and c=-3.

Substitute these values into the formula for the discriminant:

D=b²-4ac

The discriminant is 16.

6 hours 48 min

step-by-step explanation:

68÷5=13.6

13.6×30=408min=6 hours 48 min.

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