Home > Algebra calculators > Subtraction of two polynomials example

2. Subtracting polynomials example ( Enter your problem )
  1. Examples
Other related methods
  1. Adding polynomials
  2. Subtracting polynomials
  3. Multiplying Polynomials
  4. polynomial Long division
  5. polynomial Synthetic division
  6. Remainder theorem
  7. Verify polynomial is divided by another polynomial or not

1. Adding polynomials
(Previous method)
3. Multiplying Polynomials
(Next method)

1. Examples





1. Find Subtraction of `3x^2-10x+25` and `x^2+2x+2`

Solution:
`(3x^2-10x+25) - (x^2+2x+2)`

`=color{blue}{ 3x^2}color{green}{ - 10x}color{red}{ + 25}color{blue}{ - x^2}color{green}{ - 2x}color{red}{ - 2}` (Distribute and Identify like terms)

`=color{blue}{ 3x^2}color{blue}{ - x^2}color{green}{ - 10x}color{green}{ - 2x}color{red}{ + 25}color{red}{ - 2}` (Rearrange terms to get like terms together)

`=color{blue}{ 2x^2}color{green}{ - 12x}color{red}{ + 23}` (Combine like terms)



Method-2: Subtract using the Vertical method

```3x^2``-``10x``+``25`
-```x^2``+``2x``+``2`

```2x^2``-``12x``+``23`

2. Find Subtraction of `4x^3-2x^2+x-8` and `x^3-4x^2-4x-1`

Solution:
`(4x^3-2x^2+x-8) - (x^3-4x^2-4x-1)`

`=color{maroon}{ 4x^3}color{blue}{ - 2x^2}color{green}{ + x}color{red}{ - 8}color{maroon}{ - x^3}color{blue}{ + 4x^2}color{green}{ + 4x}color{red}{ + 1}` (Distribute and Identify like terms)

`=color{maroon}{ 4x^3}color{maroon}{ - x^3}color{blue}{ - 2x^2}color{blue}{ + 4x^2}color{green}{ + x}color{green}{ + 4x}color{red}{ - 8}color{red}{ + 1}` (Rearrange terms to get like terms together)

`=color{maroon}{ 3x^3}color{blue}{ + 2x^2}color{green}{ + 5x}color{red}{ - 7}` (Combine like terms)



Method-2: Subtract using the Vertical method

```4x^3``-``2x^2``+``x``-``8`
-```x^3``-`+`4x^2``-`+`4x``-`+`1`

```3x^3``+``2x^2``+``5x``-``7`

3. Find Subtraction of `8x^3+10x-6` and `2x^2-4x+1`

Solution:
`(8x^3+10x-6) - (2x^2-4x+1)`

`=color{maroon}{ 8x^3}color{green}{ + 10x}color{red}{ - 6}color{blue}{ - 2x^2}color{green}{ + 4x}color{red}{ - 1}` (Distribute and Identify like terms)

`=color{maroon}{ 8x^3}color{blue}{ - 2x^2}color{green}{ + 10x}color{green}{ + 4x}color{red}{ - 6}color{red}{ - 1}` (Rearrange terms to get like terms together)

`=color{maroon}{ 8x^3}color{blue}{ - 2x^2}color{green}{ + 14x}color{red}{ - 7}` (Combine like terms)



Method-2: Subtract using the Vertical method

```8x^3``+``0x^2``+``10x``-``6`
-```2x^2``-`+`4x``+``1`

```8x^3``-``2x^2``+``14x``-``7`

4. Find Subtraction of `6x^3+x^2+2x+6` and `x^3+4x^2-4x-16`

Solution:
`(6x^3+x^2+2x+6) - (x^3+4x^2-4x-16)`

`=color{maroon}{ 6x^3}color{blue}{ + x^2}color{green}{ + 2x}color{red}{ + 6}color{maroon}{ - x^3}color{blue}{ - 4x^2}color{green}{ + 4x}color{red}{ + 16}` (Distribute and Identify like terms)

`=color{maroon}{ 6x^3}color{maroon}{ - x^3}color{blue}{ + x^2}color{blue}{ - 4x^2}color{green}{ + 2x}color{green}{ + 4x}color{red}{ + 6}color{red}{ + 16}` (Rearrange terms to get like terms together)

`=color{maroon}{ 5x^3}color{blue}{ - 3x^2}color{green}{ + 6x}color{red}{ + 22}` (Combine like terms)



Method-2: Subtract using the Vertical method

```6x^3``+``x^2``+``2x``+``6`
-```x^3``+``4x^2``-`+`4x``-`+`16`

```5x^3``-``3x^2``+``6x``+``22`

5. Find Subtraction of `x^4-4x^3-4x+4` and `x^4-x^2+2x-2`

Solution:
`(x^4-4x^3-4x+4) - (x^4-x^2+2x-2)`

`=color{fuchsia}{ x^4}color{maroon}{ - 4x^3}color{green}{ - 4x}color{red}{ + 4}color{fuchsia}{ - x^4}color{blue}{ + x^2}color{green}{ - 2x}color{red}{ + 2}` (Distribute and Identify like terms)

`=color{fuchsia}{ x^4}color{fuchsia}{ - x^4}color{maroon}{ - 4x^3}color{blue}{ + x^2}color{green}{ - 4x}color{green}{ - 2x}color{red}{ + 4}color{red}{ + 2}` (Rearrange terms to get like terms together)

`=color{maroon}{ - 4x^3}color{blue}{ + x^2}color{green}{ - 6x}color{red}{ + 6}` (Combine like terms)



Method-2: Subtract using the Vertical method

```x^4``-``4x^3``+``0x^2``-``4x``+``4`
-```x^4``+``0x^3``-`+`x^2``+``2x``-`+`2`

`-``4x^3``+``x^2``-``6x``+``6`





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1. Adding polynomials
(Previous method)
3. Multiplying Polynomials
(Next method)





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