Looks like all real numbers to me, but then again it could be the intersection of the imaginary numbers and the friendly numbers. You never know with this sort of thing.
5
The domain of f is x is R (if imaginary roots are permitted, and there is nothing in the question to suggest otherwise). The domain of g is R excluding x = 5 So the domain of f + g is R excluding x = 5 and the domain of f/g is R excluding x = 0
-3
x can have any value in the domain.
Y = x squared -4x plus 3 is an equation of a function. It is neither called a domain nor a range.
126 ._.
if x-42x-8=0 x=-5.12500
If you mean: -2(3x-3) = 7x-2 then the value of x works out as 8/13
-1/19=x
x2 - 42x + 441 = (x - 21)2
x3 + 13x2 + 42x = x(x + 6)(x + 7).
y-42x = 24 >> Add 42x to both sides << y=24+42x >> Subtract 24 from both sides << y-24=42x >> Divine both sides by 42 << x=(y-24)/42
5x - 42x + 5 = - 37 x +5
(x - 2)(7x + 15)
-3(x + 2)(x + 4)
42x+35x-35x=42x it's leave 85 so it's change into a negative 42x-85 is the answer
You said that 42x - 3 + 7 = 8x + 5 .Combine the like terms on the left side (the -3 and the +7):42x + 4 = 8x + 5Subtract 4 from each side:42x = 8x + 1Subtract 8x from each side:34x = 1Divide each side by 34:x = 1/34The solution set is: {34}