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Solve x² + 3x = 28 {4, -7} {-4, 7} {}
x² + 3x = 28; x² + 3x - 28 = 0; (x - 4)(x + 7) = 0; x = {4, -7}
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Asked 9/14/2012 11:06:33 AM
Updated 8/17/2014 8:57:16 PM
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x² + 3x = 28;
x² + 3x - 28 = 0;
(x - 4)(x + 7) = 0;
x = {4, -7}
Added 8/17/2014 8:57:16 PM
This answer has been confirmed as correct and helpful.
Confirmed by andrewpallarca [8/17/2014 11:18:28 PM]
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ab + 2a + 3b + 6 = (a + 3)(b + 2)
Added 8/17/2014 11:16:37 PM
This answer has been confirmed as correct and helpful.
Solve x² + 8x + 7 = 0 {-1, -7} {1, 7} {}
Question
Updated 8/17/2014 8:55:08 PM
1 Answer/Comment
x² + 8x + 7 = 0;
(x + 1)(x + 7) = 0;
x = {-1, -7}
Added 8/17/2014 8:55:08 PM
This answer has been confirmed as correct and helpful.
Confirmed by andrewpallarca [8/17/2014 8:59:07 PM]
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