Question

Se A= 3x² - 5x + 2, e B= 3x² + 5x - 2, efetue A-B

Answer 1

A = 3x² - 5x + 2
B = 3x² + 5x - 2

A - B

(3x² - 5x + 2) - (3x² + 5x - 2)
3x² - 3x² - 5x - 5x + 2 + 2
-10x + 4
-10x = -4 
x = 4/10
x = 2/5

BONS ESTUDOS!