Question

ME AYUDAN CON ESTOS POLINOMIOS

DADOS LOS POLINOMIOS :
S(x): 1/2x²+4
R(x): 6x²+x+1
U(x) :x²+2

CALCULAR:

S(x)+R(x)+U(x)
S(x)-R(x)+U(x)

Answer 1

$S(x)=\frac{1}{2}x^{2}+4\\R(x)=6x^{2}+x+1\\U(x)=x^{2}+2$

calculando

$S(x)+R(x)+U(x)=\frac{1}{2}x^{2}+4+6x^{2}+x+1+x^{2}+2=(\frac{1}{2}+6+1)x^{2}+x+4+1+2=\frac{1+12+2}{2}x^{2}+x+7=\frac{15}{2}x^{2}+x+7$

$S(x)-R(x)+U(x)=\frac{1}{2}x^{2}+4-(6x^{2}+x+1)+x^{2}+2=\frac{1}{2}x^{2}+4-6x^{2}-x-1+x^{2}+2=(\frac{1}{2}-6+1)x^{2}-x+4-1+2=\frac{1-12+2}{2}x^{2}-x+5=-\frac{9}{2}x^{2}-x+5$

saludos...