Question

o grau do polinômio P(x)=A(x)-B=(x)+C=(x) é:

a)3
b)4
c)2
d)9
e)-4

Answer 1

x³-x²+1-(x⁴-2x²+x+2)

x³-x²+1-x⁴+2x²-x-2

-x⁴+x³+x²-x-1=x+2x²-x

-x⁴+x³-x²-x-1=x

-x⁴+x³-x²-x-x=0

grau é 4