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(5x^4+ 2x^3– 1)+(3x² – 3x + 3)

User Yarin
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2 Answers

4 votes

Answer:

5x^4 + 2x^3 -3x^2 - 3x + 2

Explanation:

Expanding out the brackets:

5x^4 + 2x^3 - 1 + 3x^2 - 3x + 3.

Simplifying gives

5x^4 + 2x^3 - 3x^2 - 3x + 2

Remember you can only add x's together if they have the same power. This makes sense why you can 2 to -1 because they are both the same power of x, x^0. (which equals 1 by default)

User Seanvalencourt
by
7.9k points
4 votes

Answer:

5x^4+ 2x^3+3x² – 3x + 2

Explanation:

(5x^4+ 2x^3– 1)+(3x² – 3x + 3)

Combine like terms

5x^4+ 2x^3+3x² – 3x + 3– 1

The only like terms are the constants

5x^4+ 2x^3+3x² – 3x + 2

User Sherica
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8.3k points

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