Question

8) Simplifique as expressões: a) (X + 4 ) + ( 14 + 19x) b) ( 5x² + 8x -7) – ( 3x² - 2x – 3)

Answer 1

Resposta:

a)20x + 18

b)2x² + 10x -4

Explicação passo-a-passo:

a) (x+4) + (14+19x)

x + 4 + 14 + 19x

20x + 18

b) ( 5x² + 8x -7) – ( 3x² - 2x – 3)

5x² + 8x - 7 - 3x² + 2x + 3

2x² + 10x -4