Answer:
Step-by-step explanation:
The discriminant is found in
which is part of the quadratic formula. In
, a = 4, b = 10, c = -16. Filling in for the discriminant:

It's positive so we know we have real roots; it's not a perfect square, so our solutions are 2 complex rational.
In
, a = -16, b = -7, c = 3. Filling in for the discriminant:

It's positive and not a perfect square so the 2 solutions are complex rational
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Answer:
(2,5)
Step-by-step explanation:
There you go.........
Answer:
8 hours
Step-by-step explanation:
286 divided by 13 is 22
so she's making 22 dollars an hour
22 times x = 176
x = 8
she would need to work 8 hours