Question

ayudenmeeee!
resuelvan las que puedan

Answer 1

b.
x^2 - 4x = 0
x (x - 4) = 0
0 (x - 4) = 0
x - 4 = 0
x = 0 + 4
x = 4
c.
2x^2 = 2x
2x^2 - 2x = 0
x (2x - 2) = 0
0 (2x - 2) = 0
2x - 2 = 0
2x = 0 + 2
x = 1
d.
3x^2 + 6x = 0
x (3x + 6) = 0
0 (3x + 6) = 0
3x + 6 = 0
3x = 0 - 6
x = -2
f.
4x^2 - 12x = 0
x (4x - 12) = 0
0 (4x - 12) = 0
4x - 12 = 0
4x = 0 + 12
x = 3
g.
x^2 + 5x = 0
x (x + 5) = 0
0 (x + 5) = 0
x + 5 = 0
x = 0 - 5
x = -5
h.
4x^2 + 12x = 0
x (4x + 12) = 0
0 (4x + 12) = 0
4x + 12 = 0
4x = 0 - 12
x = -3