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 :
3x4 : 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 :
3m5n²
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 -x6 : degree 6 x² : degree 2 |
x3 : degree 3 -x5 : 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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