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CTK Exchange
bluediamond
Member since Apr-9-02
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Jun-04-02, 09:10 AM (EST) |
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1. "RE: Where do I start?"
In response to message #0
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I'm assuming you mean 4 * (x+1)1/2 - 5 * (x+1)3/2 + (x+1)5/2 = 0 In that case, x = -1 is obviously a solution. For other solutions, assume that x is not equal to -1 and divide the entire thing by (x+1)1/2 to get a quadratic equation. dave |
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sapforhire
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Jun-05-02, 09:10 AM (EST) |
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3. "RE: Where do I start?"
In response to message #0
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Distributing and combining like terms gives you -3x-3=0. Another way is to think about the (x+1) and realize that small equation appears in each part of the equation; therefore if x+1=0 then the whole equation equals 0 |
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murat
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Jun-06-02, 09:10 AM (EST) |
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4. "RE: Where do I start?"
In response to message #0
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it is very simple actually. if you look carefully you should realise that the answer is -1. because if you replace x by -1 every paranthesis becomes 0(zero) so it'satisfies the equation. but if you need the proof... first lets open the eq. (4x+4)/2 -(15x+15)/2 + (5x+5)/2 = 0 multiply everything by 2 and get rid of the paranthesis 4x+4-15x-15+5x+5=0 and just solve the eq. -6x = 6 x= -1 that is it... hope it helps.
murat
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