Respuesta :

devishri1977

Answer:

Step-by-step explanation:

(7x³-8x-5)+(3x³+7x+1) =7x³ - 8x - 5 + 3x³ + 7x + 1

Combine the like terms

      = 7x³ + 3x³ - 8x + 7x - 5 + 1

Now, add/ subtract the like terms

     = 10x³ - x - 4

09pqr4sT

Answer:

[tex]10x^{3} -x-4[/tex]

Step-by-step explanation:

[tex](7x^3-8x-5)+(3x^3+7x+1)[/tex]

[tex]7x^3+-8x+-5+3x^3+7x+1[/tex]

[tex](7x^{3} +3x^{3} )+(-8x+7x)+(-5+1)[/tex]

[tex]10x^{3} -x+-4[/tex]