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Q: Which of the following is the general form of the equation 5x 2 - 20x = 15? x 2 - 4x = 3 x 2 - 4x - 3 = 0 5x 2 - 20x - 15 = 0
A: x^2 - 4x - 3 = 0
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User: Which of the following is the general form of the equation 5x 2 - 20x = 15? x 2 - 4x = 3 x 2 - 4x - 3 = 0 5x 2 - 20x - 15 = 0

Weegy: x^2-4x=3 x^2-4x-3=0 5x^2-20x-15=0
Expert answered|badgerpoe|Points 690|



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Asked 7/12/2011 7:29:22 PM
Updated 7/13/2011 2:02:48 AM
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x^2 - 4x - 3 = 0
Added 7/13/2011 2:02:48 AM
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This answer has been confirmed as correct and helpful.
What is the solution set of 7x^2 + 3x = 0?
Weegy: First you will want to take the 5 and multiply it to the -3X and 4 so it will look like this: 7X -15X-20=-21-7X Got it? Then you will combine the X's on the first side so you will get this: -8X-20= -21-7X Next you need to get the X's on [ [ [ one side so you will take the one that is less, in this case -8X and add it to the -7X. When it crosses over the equal mark it becomes a positive so you will get this next: -20=-21 + X <------you get 1X here but it is not necessary to put the 1 Next you want to get the X by itself so you will add the-21 (because it is the lowest) to the other side. Again, when you cross a negative to the other side it becomes a positive. So here is your final result: 1=X Hope that helped! ] ] ] (More)
Question
Expert Answered
Updated 8/17/2014 3:03:21 PM
1 Answer/Comment
7x^2 + 3x = 0;

x(7x + 3) = 0;

x = 0;

7x + 3 = 0;
7x = -3;
x = -3/7;

x = {0, -3/7}
Added 8/17/2014 3:03:21 PM
This answer has been confirmed as correct and helpful.
Confirmed by andrewpallarca [8/17/2014 3:08:45 PM]
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