Question

$x { }^{2} + 6 \times + 5 = 0$

Answer 1

X² + 6X  +  5 = 0

delta = 6² - [ 4 * 1 * 5 ] =  36 - 20 = 16 ou +-V16 = +-4 *****

x = ( - 6 +-4 )/2

x1 = - 10/2 = - 5 **** resposta

x2 = -2/2 = -1 ***** resposta