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Q: What is the inverse of x squared minus 4?

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x squared plus 5

1 over x2 - 4 is the multiplicative inverse of x2 minus four 1/x2 - 4

(x - 5)(x + 4)

(x+4)(x-7)

X squared is not an inverse function; it is a quadratic function.

(x + 2)(x - 4)

4

x = ? 42 = x squared minus x

x(x + 3)(x - 4)

3x2 - 11x - 4 = (x-4)(3 x + 1)

(x-1)(x-4)

x2 - 4= (x+2) (x-2)

1/x4

x3 + 4x2 - 16x - 64 = (x + 4)(x + 4)(x - 4).

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By factoring I get x-3 divided by x+3

It is x^2 -x -12 is (x+3)(x-4) when factored

x2-4x-165 = (x-15)(x+11) when factored

It is not clear what you want to solve for.

It is the difference of squares. (x-4) and (x+4) <--- answer

-22 - -22

x^2-4x/x^2-6x+8 = x(x-4)/(x-2)(x-4) = x/(x-2)

x2-5x-36 = (x-9)(x+4) when factored

(x - 4)(3x + 5)

To find the inverse of a function, you replace x with y and y with x. Here, y=2x-4 would become x=2y-4. Now, we solve for y. 2y=x+4. y=(x/2)+4, and that is the inverse equation.