Question

sejam p(x)=x³-4x²+5x-4 e q(x)=3x²-4x+3 determine p(x)+q(x)

Answer 1

$P(x)+Q(x) \\\\ x^{3}-4x^{2}+5x-4+3x^{2}-4x+3 \\\\ x^{3}-4x^{2}+3x^{2}+5x-4x-4+3 \\\\ \boxed{\boxed{x^{3}-x^{2}+x-1}}$

Answer 2

p(x)=x³-4x²+5x-4 e q(x)=3x²-4x+3 determine p(x)+q(x)

 p(x)+q(x) =  x³-4x²+5x-4+3x²-4x+3

 x³ - x² + x - 1