Question

encontre as raizes das

equacoes abaixos
2
a) x-3x+4=0

1 2
b) 2 x+2x-5=0

2
c) 4 x- 16=0

2
d) 2x + x - 2=0

Answer 1

a)x-3x+4=0
-2x+4=0
-2x=-4(×-1)
2x=4
x=4/2

x=2

b)2 x+2x-5=0
4x-5=0
4x=5

x=5/4

c)4x-16=0
4x=16
x=16/4

x=4

d)2x + x - 2=0
3x-2=0
3x=2

x=2/3