Question

5)escreva os polinomips na forma reduzida: a)x⁴-x³+5x²-2x⁴-x³-x²+x⁴+2x²= b)2x⁴+5x³+4x²+6x-5-5x³+4x²+4x-5= c)2x³+x+4-x³+2x-9-3x-x³+5= d)x³+3x²-2x+5+2x-2x²+8-x²=​

Answer 1

a)

x⁴- x³ + 5x² - 2x⁴ - x³ - x² + x⁴ + 2x² =

-2x³  + 6x²

 

b)

2x⁴ + 5x³ + 4x² + 6x - 5 - 5x³ + 4x² + 4x - 5 =

2x⁴ + 8x² + 10x - 10 =

c)

2x³ + x + 4 - x³ + 2x - 9 - 3x - x³ + 5 =

0

d)

x³ + 3x² - 2x + 5 + 2x - 2x² + 8 - x² =​

x³ + 13

:)