"x equals 0" is an equality, not an inequality. The question is, therefore, not consistent.
Since it is an inequality, there is no way to solve for x. It equals all real numbers.
Suppose x3-4x = 0. To solve, factor: x3-4x = x(x2-4) = x(x+2)(x-2) = 0 Now, a product equals 0 if and only one or more of the factors equals 0, so set each factor to 0 and solve. The roots are 0,-2 and +2.
X = 1.8
x=2
5 ^x = 0 5 = root square 0 5=0
Since it is an inequality, there is no way to solve for x. It equals all real numbers.
10x=x 9x=0 x=0
Suppose x3-4x = 0. To solve, factor: x3-4x = x(x2-4) = x(x+2)(x-2) = 0 Now, a product equals 0 if and only one or more of the factors equals 0, so set each factor to 0 and solve. The roots are 0,-2 and +2.
x: x2 - 81 = 0
X = 1.8
x=2
9x2-9x = 0 x2-x = 0 x(x-1) = 0 x = 1 or x = 0
5 ^x = 0 5 = root square 0 5=0
2x(3x+6) = 0 x = 0 or x = -2
x = 12
4x2+50x = 0 4x(x+12.5) = 0 x = 0 or x = -12.5
3x2-9x = 0 x(3x-9) = 0 x = 0 or x = 3