Question

Resolva as equações 2grau x2+_7X+12=0

Answer 1

Explicação passo-a-passo:

x² - 7x +12=0

∆= (-7)² - 4.1.12

∆= 49 - 48

∆= 1

x= - (-7) ±√1/2.1

x= 7 ±1/2

x1= 7+1/2= 8/2= 4

x2= 7-1/2= 6/2= 3

S= { 3, 4}