Question: Find the value of when Attempt: I think the quadratic equation that i got is wrong ... Where did I go wrong?
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Hello, Originally Posted by looi76 Question: Find the value of when Attempt: I think the quadratic equation that i got is wrong ... Where did I go wrong? It's the step in red which is incorrect... What you have to do is to say that x+3 has to be different of 0. Then solve : Multiplying both sides by x+3 (which is possible because x+3 is not = 0) : But I don't see why there is a quadratic equation here... ^^
Originally Posted by looi76 Question: Find the value of when Attempt: I think the quadratic equation that i got is wrong ... Where did I go wrong? You've made very heavy weather of this. Simply solve 2x - 1 - 0 (why?). And it's good form to check that the solution is not a solution to x + 3 = 0 (why?)
Originally Posted by looi76 Question: Find the value of when this is what i did (dont know if it is right or not though) Zac
Last edited by zp3929; May 2nd 2008 at 06:08 AM.
Originally Posted by zp3929 this is what i did (dont know if it is right or not though) Zac What you did was for y=1
Originally Posted by zp3929 this is what i did (dont know if it is right or not though) Zac Now, this is for y=-1
Originally Posted by Moo Now, this is for y=-1 i suck at this today ok 1 last try
Originally Posted by zp3929 this is what i did (dont know if it is right or not though) Zac
The answer I have is ?!
Originally Posted by zp3929 this is what i did (dont know if it is right or not though) Zac Originally Posted by mr fantastic Why do we get rid of ?
Originally Posted by looi76 The answer I have is ?! yer it is i edited my post (several times) we get rid of the because /0 = 0 which leaves us with
Originally Posted by zp3929 yer it is i edited my post (several times) Thanks zp3929! I couldn't understand the reason for you removing from the equation?
Originally Posted by looi76 Thanks zp3929! I couldn't understand the reason for you removing from the equation? Told you, it's because you multiply each side by x+3 ^^
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