devincope2005
contestada

50 points! Need answer ASAP! Thanks in advance!
Choose the correct simplification of (5x3 − 5x − 8) + (2x3 + 4x + 2).

7x3 + x + 6
3x3 − 9x − 10
3x3 + 9x + 10
7x3 − x − 6

Respuesta :

igoroleshko156

Answer:

Option D, [tex]7x^3-x-6[/tex]

Step-by-step explanation:

Step 1:  Simplify

[tex](5x^3 - 5x - 8) + (2x^3 + 4x + 2)[/tex]

[tex]5x^3 - 5x - 8 + 2x^3 + 4x + 2[/tex]

[tex](5x^3+2x^3)+(-5x + 4x)+(-8+2)[/tex]

[tex]7x^3-x-6[/tex]

Answer:  Option D, [tex]7x^3-x-6[/tex]

amna04352

Answer:

Option 4: 7x³ - x - 6

Step-by-step explanation:

(5x³ − 5x − 8) + (2x³ + 4x + 2)

5x³ + 2x³ - 5x + 4x - 8 + 2

7x³ - x - 6