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