Question

Resolva as equações de 2° grau: a) x²- 4x+4=0 b )x²- 6x

Answer 1

a) x²-4x+4, sendo a=1, b=-4 e c=4

x1 = -b+√b²-4ac/2a = 2
x2 = -b-√b²-4ac/2a = 2

b)x²-6x, sendo a=1, b=-6 e c=0
x1 = -b+√b²-4ac/2a = 6
x2 = -b-√b²-4ac/2a = 0