Answer:
x = a/(a² + b²) or x = -1/a
Step-by-step explanation:
a(a²+ b²)x² + b²x - a =0
Use the quadratic equation formula:

1. Evaluate the discriminant D
D = b² - 4ac = b⁴ - 4a(a² + b²)(-a) = b⁴ + 4a⁴ + 4a²b² = (b² + 2a²)²
2. Solve for x


[ Answer ]

[ Explanation ]
- Change
To Percent
-------------------------------------
Is The Same As 5 ÷ 2
5 ÷ 2 = 2.5
- Convert Decimal To Percentage
2.5 · 100 = 250
250%
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Answer: Planning because you need to start somewhere if you dont then you dont have any of the other steps
Good luck lovie :)
A or C because you have to add some things but also divide.