Respuesta :

mmamdouh

Answer:

[tex] {x}^{2} - x + 1[/tex]

Step-by-step explanation:

subtract the functions as follows:

s(x) - r(x) = (2x+1) - (-x2 +3x)

expand the 2nd bracket by multiplying it by the negative 1 outside

= 2x + 1 + x2 - 3x

= x2 - x + 1

Voila!