Question

f) x2 + 24x + 140 = -4
Em fórmula de Báskara

Answer 1

Oi de novo.

x² + 24x + 140 = -4

x² + 24x + 140 + 4 = 0

x² + 24x + 144 = 0

∆ = 24² - 4.1.144

∆ = 576 - 576

∆ = 0

$x = \frac{ - 24 + - \sqrt{0} }{2.1}$

$x = \frac{ - 24 + - 0}{2}$

$x 1 = \frac{ - 24 + 0}{2}$

$x1 = \frac{ - 24}{2}$

$x1 = 12$

$x2 = \frac{ - 24 - 0}{2}$

$x2 = \frac{ - 24}{2}$

$x2 = 12$

$x1 = x2 = 12$