Answer :

marcthemathtutor

Answer:

7x³ + 13x²+ 8x +9

Step-by-step explanation:

(3x² + 2x + 7x³) + (10x² + 6x + 9)

= 3x² + 2x + 7x³ + 10x² + 6x + 9

= 7x³ + (3x²+ 10x²)+ (2x+ 6x) +9

= 7x³ + 13x²+ 8x +9

Other Questions