Question

10) Resolva a equação do 2 grau completa, use a formula de Bhaskara para calcular.
a) - 7× +6=0​

Answer 1

x² - 7x + 6 = 0 v=> a=1, b=-7, c=6

∆=b²-4ac=(-7)² -4.1.6= 49 -24= 25 =>√∆=5

x = -b±√∆/2a

x = 7±5/2.1

x' = 7+5/2 = 12/2 = 6

x'' = 7-5/2 = 2/2 = 1