Respuesta :

Space

Answer:

3x³ + x² - 1

Step-by-step explanation:

Step 1: Rewrite expressions

(3x² - 2x³) - (-5x³ + 2x² +1)

Step 2: Distribute negative

3x² - 2x³ + 5x³ - 2x² - 1

Step 3: Combine like terms

3x³ + x² -1

TheAnimeGirl

Answer:

[tex]4 {x}^{3} + {x}^{2} + 1[/tex]

solution,

[tex]3 {x}^{2} + 2 - {x}^{3} - ( - 5 {x}^{3} + 2 {x}^{2} + 1) \\ = 3 {x}^{2} + 2 - {x}^{3} + 5 {x}^{3} - 2 {x}^{2} - 1 \\ = 3 {x}^{2} - {2x}^{2} + 2 - 1 - {x}^{3} + 5 {x}^{3} \\ = {x}^{2} + 1 + 4 {x}^{3} \\ = 4 {x}^{3} + {x}^{2} + 1[/tex]

Hope this helps...

Good luck on your assignment..

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