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# Find the value watch

1. I need to find the values of p,q and r, the question is below.

How would I go about doing this?
2. Expand the right hand side out, and compare coefficients of the terms.
3. (Original post by Noble.)
Expand the right hand side out, and compare coefficients of the terms.
This is what I've done so far.

I'm not sure about the compare the coefficients bit.
4. (Original post by zed963)
This is what I've done so far.

I'm not sure about the compare the coefficients bit.
Well, on both sides of the equations you have terms involving , and just constants. For the two equations to be equal, these coefficients must be the same. Let me give a simple example. Say you have the following:

For this to be true, we must have that , and . You can apply the same logic to your equation. If you need any more guidance/help, let me know!
5. Take out the 3 and the complete the square or expand the equation on the right hand side and compare coefficients

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6. (Original post by That_Clever_Guy)
Take out the 3 and the complete the square or expand the equation on the right hand side and compare coefficients

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If I do complete the square then p won't = 3 will it?

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