3 years ago

What is the value of b2 - 4ac for the following equation? 2x 2 - 2x - 1 = 0

1 answer:

6 0

For you to make an equation a quadratic equation, you need everything to be on one side, so you add one to both sides.

2x^2 + 3x + 0=0 

a=2, b=3, c=0 

b^2-4ac (In the next step just plug in your variables) 

3^2 - 4(2)(0) 

9 - 8(0) 

9 - 0 

Your answer=9

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