SOLUTION: Number of Solutions Find b2 - 4ac and the number of real solutions to each equation. -3x^2+7x=0 **Do not understand this one, thank you for your help!

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Question 336326: Number of Solutions
Find b2 - 4ac and the number of real solutions to each
equation.
-3x^2+7x=0

**Do not understand this one, thank you for your help!
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
From -3x%5E2%2B7x we can see that a=-3, b=7, and c=0


D=b%5E2-4ac Start with the discriminant formula.


D=%287%29%5E2-4%28-3%29%280%29 Plug in a=-3, b=7, and c=0


D=49-4%28-3%29%280%29 Square 7 to get 49


D=49-0 Multiply 4%28-3%29%280%29 to get %28-12%29%280%29=0


D=49 Subtract 0 from 49 to get 49


So the discriminant is D=49


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


If you need more help, email me at jim_thompson5910@hotmail.com

Also, feel free to check out my website.

Jim