Identifying Domain Restrictions for Rational Expressions

• x cannot be equal to 0 or 4

• x cannot be equal to 2 or -2

• x cannot be equal to 3 or -3

• x cannot be equal to 1 or -1

• x cannot equal 3 or -3

• x cannot equal 5 or -5

• x cannot equal 4 or -4

• x cannot equal 2 or -2

Determine the restriction on the rational expression \frac{7x^2-49}{\left(x+5\right)\left(x-5\right)}

• x cannot be equal to 0 or 1

• x cannot be equal to 5 or -5.

• x cannot be equal to 3 or -3

• x cannot be equal to 10 or -10

Find the restriction on the rational expression \frac{9x^2-81}{\left(x+7\right)\left(x-7\right)}

• x cannot be equal to 9 or -9

• x cannot be equal to 6 or -6

• x cannot be equal to 8 or -8

• x cannot be equal to 7 or -7.

State the domain restrictions.

• x ≠ 3, -2, 6, -1

• x ≠ -1, 6

• x ≠ 3, -2

• No Domain Restrictions

Find the excluded value(s).

• v = 5

• v = 10

• v = -25

• v = -5

State the excluded (undefined) values for the given expression.

• 8, -10

• 8, 9

• -8, 10

• -8, -9

Which value of x makes the expression undefined?

• 3

• -2

• -3

• 5

State the excluded values. x ≠ ?

• A

• B

• C

• D

Determine the excluded values.

• x = 0

• x = 2, 6

• x = -2, -6

• x = 0, -2, -6