How to find the degree of a polynomial

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SAT Math › How to find the degree of a polynomial

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1

Find the degree of the polynomial:

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Explanation

To find the degree of a polynomial we must find the largest exponent in the function.

The degree of the polynomial is 5, as the largest exponent of is 5 in the second term.

2

Find the degree of the following polynomial:

CORRECT

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Explanation

When a polynomial has more than one variable, we need to find the degree by adding the exponents of each variable in each term.

Even though has a degree of 5, it is not the highest degree in the polynomial -

has a degree of 6 (with exponents 1, 2, and 3). Therefore, the degree of the polynomial is 6.

3

Solve each problem and decide which is the best of the choices given.

What is the degree of the following polynomial?

CORRECT

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Explanation

The degree is defined as the largest exponent in the polynomial. In this case, it is .

4

Find the degree of the following polynomial:

CORRECT

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Explanation

The degree of a polynomial is the largest exponent on one of its variables (for a single variable), or the largest sum of exponents on variables in a single term (for multiple variables).

Here, the term with the largest exponent is , so the degree of the whole polynomial is 6.

5

What is the degree of this polynomial?

Degree 8

CORRECT

Degree 7

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Degree 6

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Degree 12

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Degree 10

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Explanation

When an exponent with a power is raised to another power, the value of the power are multiplied.

When multiplying exponents you add the powers together

The degree of a polynomial is the determined by the highest power. In this problem the highest power is 8.

6

What is the degree of the polynomial ?

CORRECT

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Explanation

When a polynomial has more than one variable, we need to find the degree by adding the exponents of each variable in each term.

has a degree of 4 (since both exponents add up to 4), so the polynomial has a degree of 4 as this term has the highest degree.