Respuesta :
(3x^2+11x+4)+(-5x+x^2-13)
[tex](3x^2+11x+4)+(-5x+x^2-13) = \\ \\ 3x^2+x^2+11x-5x+4-13= \boxed{4x^2+6x-9} [/tex]
.I wish you much success in your studies!!!!
[tex](3x^2+11x+4)+(-5x+x^2-13) = \\ \\ 3x^2+x^2+11x-5x+4-13= \boxed{4x^2+6x-9} [/tex]
.I wish you much success in your studies!!!!