Question

3) Escreva na forma reduzida o polinômio abaixo. 4x³ + ( x² + 2x + 2 ) + ( 3x² + 2x ² - 5x + 5 ) – ( 2x² - 2x – 3 ) = * - 4x³ + x² - x + 6 - 4x³ + 2x² - x + 10 4x³ + x² - 2x + 6 4x³ + 4x² - x + 10

Answer 1

Oie, Td Bom?!

$= 4x {}^{3} + (x {}^{2} + 2x + 2) + (3x {}^{2} + 2x {}^{2} - 5x + 5) - (2x {}^{2} - 2x - 3)$

$= 4x {}^{3} + x {}^{2} + 2x + 2 + (5x {}^{2} - 5x + 5) - 2x {}^{2} + 2x + 3$

$= 4x {}^{3} + x {}^{2} + 2x + 2 + 5x {}^{2} - 5x + 5 - 2x {}^{2} + 2x + 3$

$= 4x {}^{3} + 4x {}^{2} - x + 10$

Att. Makaveli1996