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# Finding roots with the discriminant Watch

1. Find the value(s) for p so that the roots are equal.

If the roots are equal. It wants me to find values for p where:
(b^2)-4ac = 0

I'm fine with this, but I'm trying to get the equation into a quadratic. I ended up just drowning in long terms so I keep going wrong somewhere.

Thank you, if you can guide me towards the answer
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2. (Original post by Feynboy)
Find the value(s) for p so that the roots are equal.

If the roots are equal. It wants me to find values for p where:
(b^2)-4ac = 0

I'm fine with this, but I'm trying to get the equation into a quadratic. I ended up just drowning in long terms so I keep going wrong somewhere.

Thank you, if you can guide me towards the answer
It means a quadratic in x
a=1
b=2(1-p)
c=2p+1
for that first step
3. (Original post by Feynboy)
Find the value(s) for p so that the roots are equal.

If the roots are equal. It wants me to find values for p where:
(b^2)-4ac = 0

I'm fine with this, but I'm trying to get the equation into a quadratic. I ended up just drowning in long terms so I keep going wrong somewhere.

Thank you, if you can guide me towards the answer

So a=1, b=-2(p-1), and c=2p+1.

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