Solve (10x - 9)(4x + 7) = 0

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The solution set for (10x - 9)(4x + 7) = 0 is {x = -7/4 or x = 9/10}. (10x - 9)(4x + 7) = 0; 10x - 9 = 0; 10x = 9; x = 9/10; 4x + 7 = 0; 4x = -7; x = -7/4

Expert answered|itolduso|Points 1816|

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Asked 9/30/2009 2:55:16 PM

Updated 11/27/2014 6:17:55 AM

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Edited by andrewpallarca [11/27/2014 6:17:53 AM], Confirmed by andrewpallarca [11/27/2014 6:17:55 AM]

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(x + 5) (x + 7) = 0

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Question

Updated 10/20/2014 6:17:26 PM

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andrewpallarca

(x + 5) (x + 7) = 0;
x^2 + 7x + 5x + 35 = 0;
x^2 + 12x + 35 = 0
Roots are x = -5, x = -7

Added 10/20/2014 6:17:26 PM

This answer has been confirmed as correct and helpful.

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