Posted by **Jessica** on Monday, July 20, 2009 at 7:57pm.

Find b^2 - 4ac and the number of real solutions to equation.

-3x^2+7x=0

- algebra -
**Marth**, Monday, July 20, 2009 at 8:16pm
The equation is in the form

ax^2 + bx + c = 0

-3x^2 + 7x = 0

So, a = -3, b = 7, and c = 0

b^2 - 4ac = 49 - 0 = 49

The square root of a positive number is a real number, so there are 2 real solutions by the quadratic formula.

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