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I need help with this problem x over 2x+7 minus x+1 over ...
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by
WinpossibleUser3634
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I need help with this problem x over 2x+7 minus x+1 over x+3 eqauals 1
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Responses
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Given: [x/(2x + 7) ] – [(x + 1)/(x + 3)] = 1
 [x(x + 3) – (x + 1)(2x + 7)] / [(2x + 7)(x + 3)] = 1
(x2 + 3x – 2x2 – 9x – 7) / (2x2 + 13x + 21) = 1
-x2 – 6x – 7 = 2x2 + 13x + 21
3x2 + 19x + 28 = 0
Solve this quadratic equation, then you will get values of x.
Related video lessons: Dividing by a Binomial ,
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by
Winpossible
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Aug 25, 10 02:23AM PST
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