Question

7. Resolva as equações. 3/2x + 4 = 3 (x -1) + 5/2

Answer 1

Resposta:

3/2x + 4 = 3x + 3 + 5/2

3/2x + 4 = 3x - 1/2

3/2x + 4 - 3x + 1/2 = 0

3/2x + 9/2 - 3x = 0

3 + 9x - 6x²/2x = 0

3 + 9x - 6x² = 0

-6x² + 9x - 3 = 0

2x² - 3x - 1 = 0

x = √-(-3)² - 4 × 2 × (-1) / 2 × 2

x = 3 ± √9+8 / 4

x = 3 ± √17 / 4

x¹ = 3 + √17 / 4

x² = 3 - √17 / 4

Answer 2

Resposta:

eita queria muito aguda vc