Question

1- Calcule a soluçao das equeçoes
a)-4ײ=0
b)13ײ=0
c)2ײ-8=0
d)5ײ-125=0
e)4ײ-8x=0
F)6ײ+12x=0

Answer 1

a)-4ײ=0
x^2=0
x=0

b)13ײ=0 
x^2=0
x=0

c)2ײ-8=0
2x^2=8
x^2=4
x=mais ou menos 2

x=2
x=-2

x¹=2
x²=-2

d)5ײ-125=0
625x²=0
x²=0
x=0

e)4ײ-8x=0 
4x x(x-2)=0
x x(x-2)=0

x=0
x-2=0

x=0
x=2
x¹=0
x²=2

F)6ײ+12x=0
6x x (x+2)=0
x x(x+2)=0
x=0
x+2=0

x=0
x=-2

x¹=0
x²=-2