The domain is what you choose it to be. You could, for example, choose the domain to be [3, 6.5] If the domain is the real numbers, the range is [-12.25, ∞).
(x + 2)(x - 4)
- ln ((x^2)-4)
(X-5)(X+4)=0 so X-5=0 -----X=5 and X=4=0 so X=-4 it factors to (X-5)(X+4) so X=5,-4
Your equation is not clear I can understand it in two ways (x2-16)/x-4+x2=16 x=-4.59486 x=-0.793499 x=4.38835 or x2-(16/x)-4+x2=16 x=3.50466 x=-0.864641 x=-2.64002
D = {x [element of reals]}R = {y [element of reals]|y >= 4}
(x - 5)(x + 4)
The domain is what you choose it to be. You could, for example, choose the domain to be [3, 6.5] If the domain is the real numbers, the range is [-12.25, ∞).
(x+4)(x-7)
(x + 2)(x - 4)
4
x(x + 3)(x - 4)
1/x4
2
x = ? 42 = x squared minus x
3x2 - 11x - 4 = (x-4)(3 x + 1)
(x+2)(x−4)