Respuesta :

wegnerkolmp2741o

Answer:

7b+4

Step-by-step explanation:

(2b^2+3b-5)-(2b^2-4b-9)

Distribute the minus sign

(2b^2+3b-5)-2b^2+4b+9

Combine like terms

2b^2 -2b^2 +3b +4b -5+9

7b +4