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https://d26f54f108f25b7a7b38959c5e1b3416e2244dcb.googledrive.com/host/0B1ZiqBksUHNYb09NR2hGa2hWa2M/for-Edexcel/Solomon%20C%20QP%20-%20M1%20Edexcel.pdf

https://d26f54f108f25b7a7b38959c5e1b3416e2244dcb.googledrive.com/host/0B1ZiqBksUHNYb09NR2hGa2hWa2M/for-Edexcel/Solomon%20C%20MS%20-%20M1%20Edexcel.pdf

For Q4b, why are my simultaneous equations wrong?

p+4q=16
p^2+q^2 = 576

???
Original post by ps1265A


Draw a diagram, and mark the components of F2 separately, then hopefully you'll see why the first equation is wrong.

For the second equation 342≠57634^2\not=576
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ps1265A
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Original post by ghostwalker
Draw a diagram, and mark the components of F2 separately, then hopefully you'll see why the first equation is wrong.

For the second equation 342≠57634^2\not=576


-p x 1
q x 4
-p + 4q?
Original post by ps1265A
-p x 1
q x 4
-p + 4q?


No. Diagram.
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ps1265A
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14
Original post by ghostwalker
No. Diagram.


ImageUploadedByStudent Room1432801353.202612.jpg


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Original post by ps1265A


Seriously. Mark the position approximately, don't just draw a horizontal line, and draw the components separately, not just one line for pi+qj.

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