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Evgesh-ka [11]
3 years ago
14

-8p^2+8p+7=9 how do i find the discriminant

Mathematics
1 answer:
m_a_m_a [10]3 years ago
5 0
The discriminant can be found using the formula b^2-4ac 

First put your equation in standard form, where all your values are on one side, and just add f(x) or y in front of your equation. 
y= 8p^2-8p+2

The first value of your equation is a   (a=8)
The second term of your equation is b  (b=-8)
The last term of your equation is c  (c=2)

Plug in the values to the discriminant equation b^2-4ac 
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Step-by-step explanation:

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Next, you would turn them into an improper fraction, which is:

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Then, you would multiply 92/7 by 3/3 because that is the least common multiple for 21 and 7 (which are the denominators). When you are done multiplying, the equation would be:

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Afterwards, you would subtract the numerators and leave the denominators alone, which gives you the answer 166/21. As a mixed number, this would equal 7 19/21.

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