Respuesta :

Answer:

-2[tex]x^{2}[/tex]+11x-4

Step-by-step explanation:

(2[tex]x^{2}[/tex]+5x-7)+(3-4[tex]x^{2}[/tex]+6x)

2[tex]x^{2}[/tex]-4[tex]x^{2}[/tex]+5x+6x-7+3

-2[tex]x^{2}[/tex]+11x-4

Answer:

-2x^2+11x-4

Step-by-step explanation: