beth12345
Solve for x (completely). Give Exact answers if possible. Otherwise, give a good approximation (to at least 4 decimal places). Show all necessary steps.
1. ((x-1)(x+6))/(x+2) = 12
2. ((x/3)+(1/(x-2))) = 2
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Denebel
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|dw:1346889626573:dw| Factor that and set equal to zero.
beth12345
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(x-10)(x+3)=0 ?
Denebel
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Yes so the values for x when x-10=0 and x+3=0 is...?
|dw:1346889836392:dw|
Denebel
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*in case you can't see the full picture it says multiply everything by LCM (which is 3(x-3))
beth12345
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ok, and for the first one, is there no possible answer?
Denebel
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|dw:1346890243083:dw| as both will allow the function to equal 0
beth12345
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oh, ok i get it
beth12345
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and is the second ones answer 3?
Denebel
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Yes
beth12345
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ok thanks :)