please explain how can I answer this one :) I know the answer should be a.) -4 & b.) -1.

could you explain how will I come up with that answer? Thank you :)

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- Mar 28th 2013, 11:27 PMRenrielook for the value that satisfies the equation
please explain how can I answer this one :) I know the answer should be a.) -4 & b.) -1.

could you explain how will I come up with that answer? Thank you :)

Attachment 27728 - Mar 29th 2013, 05:59 AMRuunRe: look for the value that satisfies the equation
Hint or

- Mar 29th 2013, 07:27 AMHallsofIvyRe: look for the value that satisfies the equation
That's very clever! I would have just

**solved**to see that the only x that satisfy that equation are and , then put those into P to see how I could cancel that irrational " " part. But Ruun's hint is much simpler. - Mar 30th 2013, 03:00 AMpaulianaRe: look for the value that satisfies the equation
I'm trying to solve it to but I don't get the equation. should I substitute the given?

- Mar 30th 2013, 06:07 AMHallsofIvyRe: look for the value that satisfies the equation
You have been told two different ways to solve this problem. Please show what you have tried and where you are stuck.