It's an expression, whose exact value depends on the value assigned to "x".
If you mean: x squared -x -56 = 0 then using the quadratic equation formula x = 8 or x = -7
x3 - 3x2 - 28x = x (x2 - 3x - 28) = x (x - 7) (x + 4)The numerical value of all this, of course, depends on the value of 'x',and it can change in a flash whenever the value of 'x' changes.
x5
(-9 x -8) + (-16) = (72) -16 = 56
It's an expression, whose exact value depends on the value assigned to "x".
Would you mind typing it out for me? I don't quite understand exactly what you are asking. For example, x to the second power minus 4x over x to the second power minus 16 would be... x^2-4x/x^2-16 Do you mind typing it out like that? Because what you wrote makes no sense at all.
It's simply 56 X 56, so it is therefore: 3136 feet.
(x2 - 16) = (x + 4) (x - 4)
7(x - 2)(x + 2)
which of the following is a factor of x2 - 5x - 6
If you mean: x squared -x -56 = 0 then using the quadratic equation formula x = 8 or x = -7
x3 - 3x2 - 28x = x (x2 - 3x - 28) = x (x - 7) (x + 4)The numerical value of all this, of course, depends on the value of 'x',and it can change in a flash whenever the value of 'x' changes.
There is a formula for "the difference of squares." (x + 7)(x - 7) = 0 x = 7, -7
x5
(-9 x -8) + (-16) = (72) -16 = 56
Just X to the second power minus nine. You can't subtract nine from x to the second power unless you know what x is.