Respuesta :

Given

[tex]f\mleft(x\mright)=x+4\text{ }and\text{ }g\left(x\right)=x-7[/tex]

Explanation

[tex]\begin{gathered} (f.g)\mleft(x\mright)=(x+4)(x-7) \\ =x^2+4x-7x-28 \\ =x^2-3x-28 \end{gathered}[/tex]

Answer:

[tex]x^2-3x-28[/tex]