Question

Calcule: (3x³ + 2x² - 6x - 7) - (-x³ + 2x² - 2x - 4) helppp

Answer 1

Oie, Td Bom?!

$= (3x {}^{3} + 2x {}^{2} - 6x - 7) - ( - x {}^{3} + 2x {}^{2} - 2x - 4)$

$= 3x {}^{3} + 2x {}^{2} - 6x - 7 + x {}^{3} - 2x {}^{2} + 2x + 4$

$= 4x {}^{3} - 4x - 3$

Att. Makaveli1996