4.2 × 10-4 written in regular notation is 0.00042
x times x cubed is equal to x^4, or x raised to the power of 4.
46 = 4 x 4 x 4 x 4 x 4 x 4 = 4,096
x^(2-x-6)/x^(2-4) x^(-4-x)/x^-2(x^-2)*(x^(-2-6))= x^(-2-x)
4 x 4 x 4 x 4 x 4 = 1024
10
x to 4 power divided by x is: (x^4) รท x = (x * x * x * x) รท x = x^3
4 x 4 x 4 x 4 x 4 = 45
If that is x to the power 0, then it = 1, irrespective of the value of x. Consider for example x =4. x squared is 16. To get from x to the power 2 to x to the power 1, you divide by x, giving 4 to the power 1 = 4. Similarly, to get from x to the power 1 to x to the power 0, you divide by x, giving 4 to the power zero = 1.
4,096 = 4 x 4 x 4 x 4 x 4 x 4
x times x cubed is equal to x^4, or x raised to the power of 4.
46 = 4 x 4 x 4 x 4 x 4 x 4 = 4,096.
46 = 4 x 4 x 4 x 4 x 4 x 4 = 4,096
x^(2-x-6)/x^(2-4) x^(-4-x)/x^-2(x^-2)*(x^(-2-6))= x^(-2-x)
0.5556
4 x 4 x 4 x 4 x 4 = 1024
10
x^2(x - 4)(x + 4)