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Olegator [25]
3 years ago
15

Which algebraic expression is a polynomial with a degree of 2?

Mathematics
2 answers:
olganol [36]3 years ago
7 0

Answer:D

Step-by-step explanation:

uysha [10]3 years ago
6 0
Given the question "<span>Which algebraic expression is a polynomial with a degree of 2?" and the options:
1). 4x^3-2x
2). 10x^2- \sqrt{x}
3). 8x^3+ \frac{5}{x} + 3
4). 6x^2-6x + 5

A polynomial </span><span>is an expression consisting of variables and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer exponents of variables.

</span><span>The degree of a polynomial is the highest exponent of the terms of the polynomial.

For option 1: </span><span>It contains no fractional or negative exponent, hence it is a polynomial. But the highest exponent of the terms is 3, hence it is not of degree 2.

For opton 2: It contains a fractional exponent which violates the definition of a polynomial, hence, it is not a polynomial.
i.e. 10x^2- \sqrt{x} =10x^2- x^{ \frac{1}{2} }

For option 3: </span><span>It contains a negative exponent which violates the definition of a polynomial, hence, it is not a polynomial.
i.e. 8x^3+ \frac{5}{x} + 3=8x^3+5x^{-1}+3

For option 4: It contains no fractional or negative exponent, hence it is a polynomial. Also, the highest exponent of the terms is 2, hence it is of degree 2.
</span>
Therefore, <span>6x^2-6x + 5 s a polynomial with a degree of 2. [option 4]</span>
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