In B 5^2 = 25. There is no x anywhere.
In C f(x) = 2/x is a function of a reciprocal, not a quadratic.
In D f(x) = 2x^3 + 3x^2 - 5 is a cubic. A cubic is not a quadratic. The highest power of a quadratic is x^2
That leaves A. When you expand the brackets, you get
3(x^2 + 3x- 4x - 12)
2(x^2 - x - 12) when you remove the brackets you get
2x^2 - 2x - 24. The highest power of x is x^2. This is your quadratic.
A<<<< answer.
Answer:
<h2>an exponent</h2>
Step-by-step explanation:
In x², here the 2 is exponent while x is base.
The exact radius of a circle with a radius of 12 inches is 75.4. The formula is 2πr.
He earned $325 because 900 divided by 4% = $225! :)
Answer:
B. 4
Step-by-step explanation:
Whole numbers are divisible by 4 if the number formed by the last two individual digits is evenly divisible by 4.
