Question

Resolva as equações incompletas do segundo grau
A) 4x² - 12x = 0
B) 12x² -24 = 0
C) x² - 36 = 0
D) x² - 7x = 0

Answer 1

Resposta:

a) 4x²-12x=0

16x-12x=0

4x=0

x= 4/0

x=0

b) 12x²-24=0

144x-24=0

144x=0+24

144x=24

x= 144/24

x=6

c) x²-36=0

x-36=0

x=36

d) x²-7x=0

x-7x=0

-6x=0

6x=0