High School

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------------------------------------------------ Polynomials Review (Mixed: Add/Subtract/Multiply)

Simplify the polynomials:

1. [tex]20x^8 + 15x^4 + 35x^4[/tex]

2. [tex]6x^3 - 16x^2 - 38x + 24[/tex]

3. [tex]10x^2 + 20x - 4[/tex]

4. [tex]20x^6 + 15x^5 + 35x^4[/tex]

5. [tex]9x^2 + 49[/tex]

6. [tex]9x^2 + 42x - 49[/tex]

7. [tex]6x^2 + 16x + 24[/tex]

8. [tex]x^2 - 81[/tex]

9. [tex]25x^2 - 20x + 4[/tex]

10. [tex]9x^2 - 49[/tex]

11. [tex]x^2 + 81[/tex]

12. [tex]x^2 + 18x - 81[/tex]

Answer :

Sure, let's simplify each of the polynomials step by step:

1. Polynomial: [tex]\( 20x^8 + 15x^4 + 35x^4 \)[/tex]
- Combine like terms:
[tex]\[
15x^4 + 35x^4 = 50x^4
\][/tex]
- Simplified polynomial:
[tex]\[
20x^8 + 50x^4
\][/tex]

2. Polynomial: [tex]\( 6x^3 - 16x^2 - 38x + 24 \)[/tex]
- This polynomial has no like terms, so it is already simplified.

3. Polynomial: [tex]\( 10x^2 + 20x - 4 \)[/tex]
- This polynomial has no like terms, so it is already simplified.

4. Polynomial: [tex]\( 20x^6 + 15x^5 + 35x^4 \)[/tex]
- This polynomial has no like terms, so it is already simplified.

5. Polynomial: [tex]\( 9x^2 + 49 \)[/tex]
- This polynomial has no like terms, so it is already simplified.

6. Polynomial: [tex]\( 9x^2 + 42x - 49 \)[/tex]
- This polynomial has no like terms, so it is already simplified.

7. Polynomial: [tex]\( 6x^2 + 16x + 24 \)[/tex]
- This polynomial has no like terms, so it is already simplified.

8. Polynomial: [tex]\( x^2 - 81 \)[/tex]
- This polynomial has no like terms, so it is already simplified.

9. Polynomial: [tex]\( 25x^2 - 20x + 4 \)[/tex]
- This polynomial has no like terms, so it is already simplified.

10. Polynomial: [tex]\( 9x^2 - 49 \)[/tex]
- This polynomial has no like terms, so it is already simplified.

11. Polynomial: [tex]\( x^2 + 81 \)[/tex]
- This polynomial has no like terms, so it is already simplified.

12. Polynomial: [tex]\( x^2 + 18x - 81 \)[/tex]
- This polynomial has no like terms, so it is already simplified.

Here are the simplified versions of each polynomial individually evaluated.