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Add or subtract the following polynomials:

1. [tex]\left(-4x^4 + 3x^2 + 14\right) + \left(-3x^4 - 14x^2 - 8\right)[/tex]


Sagot :

To solve the problem of adding the given polynomials, we will combine like terms step by step. Here are the two polynomials we need to add:

[tex]\[ (-4x^4 + 3x^2 + 14) + (-3x^4 - 14x^2 - 8) \][/tex]

Step 1: Write down the polynomials next to each other:

[tex]\[ -4x^4 + 3x^2 + 14 \\ -3x^4 - 14x^2 - 8 \][/tex]

Step 2: Combine the like terms. Start with the highest degree terms and move to the constant term:

### Degree 4 Terms:
Combine [tex]\(-4x^4\)[/tex] and [tex]\(-3x^4\)[/tex]:

[tex]\[ -4x^4 + (-3x^4) = -7x^4 \][/tex]

### Degree 2 Terms:
Combine [tex]\(3x^2\)[/tex] and [tex]\(-14x^2\)[/tex]:

[tex]\[ 3x^2 + (-14x^2) = 3x^2 - 14x^2 = -11x^2 \][/tex]

### Constant Terms:
Combine [tex]\(14\)[/tex] and [tex]\(-8\)[/tex]:

[tex]\[ 14 + (-8) = 14 - 8 = 6 \][/tex]

Step 3: Put all the combined terms together:

[tex]\[ -7x^4 - 11x^2 + 6 \][/tex]

So, the result of adding the given polynomials is:

[tex]\[ -7x^4 - 11x^2 + 6 \][/tex]

This is the simplified form of the sum of the polynomials [tex]\((-4x^4 + 3x^2 + 14)\)[/tex] and [tex]\((-3x^4 - 14x^2 - 8)\)[/tex].