Use the discriminant to determine the number of real solutions to the equation,
10n^2 = 10 - 8n
1 answer:
Answer:
2 real solutions
Step-by-step explanation:
Get all the terms to one side
10n^2 = 10 - 8n
10n^2 +8n -10 =0
ax^2 +bx+c =0
The discriminant is
b^2 -4ac
8^2 - 4(10)(-10)
64 +400
464
If the discriminant is greater than 0 we have 2 real solutions
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Wouldn't the formula be a×b/2?
Which one do you want answered?
Answer:
x = 1
Step-by-step explanation:
two ratios are equal and form a proportion.
