Question

Calcule as equações do 2º grau incompletos

2
A) 2x -8 = 0

2
B) -4t +24t = 0

2
C) 2x +4x =0

2
D) X -25 =0

Answer 1

a) 2x=8

x= 8/2

x=4

b) -4t+24t=0

20t=0

t=0

c) 2x+4x=0

6x=0

0

d) x-25=0

x-25+25=0+25

x= 0+25

x= 25