Question

Resolva as equações de segundo grau e arme a conta. a) x² - 7x – 18 = 0 b) x² - 3x - 10 = 0 c) 2x² - 5x – 3 = 0 d) 9x² + 6x + 1 = 0 e) 6x² - x – 5 = 0 f) 25² + 10x + 1 = 0 g) – 7x² + 28 = 0 h) x² + x(2x – 45) = 0 i) 3x( x + 2) + (x – 1)² = x + 1 j) 7x² + x = x² 3 2 k) (x – 7) (x – 3) + 10x = 30 l) x + 1 = 8 – x x m) 4(x² + 16) = (x + 8)² n) 9x² = 5(6x – 5) o) 2x( x + 5) = x – 7

Answer 1

Faz bhaskara nas incompletas