Question

Which domain restrictions apply to this rational expression? x2 4x 4x2−4 select each correct answer.

Answer 1

Because domain restrictions apply to this rational expression, x cannot be equal to {-2, 2}.

What is domain?

Domain restrictions are any points in the domain where the function will not have a value. This basically means that there is a point in the function where x will not work.

For the numerator, any value of x will suffice. We can have a value of 0 in the numerator, or a positive, negative, or decimal number.

However, the denominator cannot be equal to zero. This is due to the fact that a fraction bar represents division, and we cannot divide by zero.

Here,

x²-4=0

Add 4 to both sides:

x²-4+4 = 0+4

x² = 4

Take the square root of both sides:

√x² = √4

x = 2 or x = -2

The x cannot be equal to {-2, 2} as domain restrictions apply to this rational expression.

To know more about domain,

brainly.com/question/10238709

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