One half the difference of the cube of a number, x, and three

The expression ' one-half difference of a number cubed and one' is written as .

Let the number be .

The cube of the number is .

Difference of the cube of the number with is .

Now, one-half difference of a number cubed and one is represent as,

.

So, the expression ' one-half difference of a number cubed and one' is written as .

Learn more about expressions here:https:

//link

(1/2)(x³ - 3)

Step-by-step explanation:

That would be   (1/2)(x³ - 3).

since your problem is x^4 = 81, what you have to undeo is the "to the fourth power" part.

the inverse (opposite operation) of "to the fourth power" is "to the fourth root".

  (x^4) ^ ¼   = 81 ^ ¼  

  81 = 3^4     so (3 ^ 4) ^ ¼   =   3 ^ 1   = 3

by hand: (3 ^ 4) ^ ¼   =   3 ^ (4 x ¼) = 3 ^ 1   = 3   (when you take a power to a power, multiply the exponents.)

or, do it by calculator. one way of finding the fourth root is to use ^ (1/4)

step-by-step explanation:

you never say the total so we cant find the percentage used for petrol

step-by-step explanation: