Respuesta :

sqdancefan

Answer:

  4g^2 +9g -3

Step-by-step explanation:

(7g^2+ 5g- 1) -(3g ^2- 4g+ 2)

= 7g^2 +5g -1 -3g^2 +4g -2 . . . . . distribute the minus sign

= g^2(7 -3) +g(5 +4) +(-1 -2) . . . . . add like terms

= 4g^2 +9g -3