HOW TO FIND THE DEGREE OF A POLYNOMIAL

What is the Degree of a Polynomial ?

A polynomial’s degree is the highest or the greatest power of a variable in a polynomial equation.

The degree indicates the highest exponential power in the polynomial (ignoring the coefficients).

For example :

6x4 + 2x3+ 3 is a polynomial. 

Here 6x4, 2x3, 3 are the terms.

Highest degree of a polynomial is 4.

Write the degree of each polynomial.

Problem 1 :

3x4 + 2xyz + 5x² - 4

Solution :

Find the degree of each term :

3x: degree 4

2xyz : degree 3

5x² : degree 2

-4 : degree 0

So, the greatest degree is 4.

Problem 2 :

-6s²tu³ + st + tu² + st³u + t³

Solution :

Find the degree of each term :

-6s²tu³ : degree 6

St : degree 2

tu² : degree 3

st³u : degree 5

t³ : degree 3

So, the greatest degree is 6.

Problem 3 :

-d² - d – 9d³

Solution :

-d² : degree 2

-d : degree 1

-9d³ : degree 3

So, the greatest degree is 3.

Problem 4 :

uv + 4u

Solution :

Find the degree of each term :

uv : degree 2

4u : degree 1

So, the greatest degree is 2.

Problem 5 :

6u² + u²vw – 2u³vw + 4u³

Solution :

6u² : degree 2

u²vw : degree 4

-2u³vw : degree 5

4u³ : degree 3

So, the greatest degree is 5.

Problem 6 :

3m5

Solution :

3m5n² : degree 7

So, the greatest degree is 7.

Problem 7 :

p²q³r³ - p4qr² + 7 + qr + p6q

Solution :

p²q³r³ : degree 8

- p4qr² : degree 7

7 : degree 0

qr : degree 2

p6q : degree 7

So, the greatest degree is 8.

Problem 8 :

-8a² + abc + b²c² + ab

Solution :

-8a² : degree 2

abc : degree 3

b²c² : degree 4

ab : degree 2

So, the greatest degree, 4.

Problem 9 :

x – x6 + x² + x³ - x5

Solution :

x : degree 1

-x: degree 6

x² : degree 2

x3 : degree 3

-x: degree 5

So, the greatest degree is 6.

Problem 10 :

4r4 + r³s4t³ - r²s³t + t6 + 3

Solution :

4r4 : degree 4

r³s4t³ : degree 10

- r²s³t : degree 6

t6 : degree 6

3 : degree 0

So, the greatest degree is 10.

Problem 11 :

-q³rs² + 3 – q7r² + r²s4

Solution :

q³rs² : degree 6

3 : degree 0

-q7r² : degree 9

r²s4 : degree 6

So, the greatest degree is 9.

Problem 12 :

w4xy5 – w6xy³ + 9w4x5y2

Solution :

w4xy5 : degree 10

-w6xy3 : degree 10

9w4x5y2 degree 11

So, the greatest degree is 11.

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