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3x^2+4x-15=0
3x^2+4x-15=0 (x + 3) (3x - 5) = 0; x + 3 = 0; x = -3; 3x - 5 = 0; 3x = 5; x = 5/3; x = {-3, 5/3}
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Question
Asked 10/1/2009 3:19:56 PM
Updated 8/30/2014 1:10:47 PM
2 Answers/Comments
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3x^2+4x-15=0
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alfred123
3x^2+4x-15=0
(x + 3) (3x - 5) = 0;
x + 3 = 0;
x = -3;
3x - 5 = 0;
3x = 5;
x = 5/3;
x = {-3, 5/3}
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Added 8/30/2014 1:10:47 PM
This answer has been confirmed as correct and helpful.
Confirmed by
yumdrea
[8/30/2014 1:15:40 PM]
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Questions asked by the same visitor
1-9/10x=8/5
Weegy:
In that equation, x is equal to 6/5.
(More)
Question
Expert Answered
Updated 8/30/2014 7:06:59 PM
2 Answers/Comments
adoptivemama
Math is fun!
Added 10/1/2009 8:09:13 PM
8
andrewpallarca
M
1-9/10x = 8/5;
-9/10x = 8/5 - 1;
-9/10x = 3/5;
x = (3/5)/(-9/10);
x = 30/-45;
x = -2/3
Added 8/30/2014 7:06:54 PM
This answer has been confirmed as correct and helpful.
6(x+5)=7[x-(3-x)]
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Question
Updated 8/30/2014 6:50:46 PM
1 Answer/Comment
8
alfred123
6(x+5)= 7[x-(3-x)]
6x + 30 = 7(x - 3 + x)
6x + 30 = 7(2x -3);
6x + 30 = 14x -21;
30 + 21 = 14x - 6x;
51 = 8x;
x = 51/8
Added 8/30/2014 6:50:46 PM
This answer has been confirmed as correct and helpful.
Confirmed by
andrewpallarca
[8/30/2014 7:00:49 PM]
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