Question

Me ayudan por favor es para ahora​

Answer 1

A). 2x² + 5x + 6 = 0

x = - 5 ± ✓5² - 4 × 2 × 6/2 × 2

x = - 5 ± ✓25 - 48/4

x = - 5 ± ✓ - 23/4

= x€R

B). x² + 7x + 12 = 0

x² + 4x + 3x + 12 = 0

x × (x + 4) + 3 (x + 4) = 0

x + 4 = 0

x + 3 = 0

x = - 4

x = - 3

C). x² + 2x + 1 = 0

(x + 1)² = 0

x + 1 = 0

x + 1 - 1 = 0 - 1

x = 0 - 1

x = - 1