SOLUTION: I need Finding b^2-4ac and the number real solutions for this equation. -3x^2 + 7x = 0

Question 329636: I need Finding b^2-4ac and the number real solutions for this equation.

-3x^2 + 7x = 0

Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!

From we can see that , , and

Start with the discriminant formula.

Plug in , , and

Square to get

Multiply to get

Subtract from to get

So the discriminant is

Since the discriminant is greater than zero, this means that there are two real solutions.

Note: because the discriminant is a perfect square, this means that the two solutions are rational solutions.

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