Original post by Vinni0001
Given p=-3
find the exact roots of (2p+5)x^2+px+1=0
I plugged -3 into the equation and the ended up with the equation:
-x^2-3x+1=0
From here, i dont know how to factorise it.
find the exact roots of (2p+5)x^2+px+1=0
I plugged -3 into the equation and the ended up with the equation:
-x^2-3x+1=0
From here, i dont know how to factorise it.
Bring all terms to the other side, or multiply by -1, then use the quadratic formula.
Original post by NotNotBatman
Bring all terms to the other side, or multiply by -1, then use the quadratic formula.
oh, right.
Thanks
Original post by Vinni0001
oh, right.
Thanks
Thanks
Also, since it is C1 no calc, completing the square might be easier
Original post by 123Master321
Also, since it is C1 no calc, completing the square might be easier
Coolio, thanks
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