MISSING Tasks

What are the domain restrictions of the following rational expression:

• x ≠ 4

• x ≠ -4, 4

• x ≠ -16, 16

• x ≠ 0, 4

Simplify. 

• (m+6)/(m-3)
• 7/(m-3)
• 7(m+6)
• (m-3)

What is the domain?

• (-∞, ∞)

• (-∞, 1) U (1,∞)

• (-∞, 2) U(2, ∞)

What is the domain?

• (-∞, ∞)

• (-∞, 0) U (0, ∞)

• (-∞, -3) U (3, ∞)

• (-∞, -3) U (-3, 3) U (3, ∞)

Which is the range of the following?

• (−∞, -2) and (-2, +∞)

• (−∞, 7) and (7, +∞)

• (−∞, -7) and (-7, +∞)

• (−∞, 2) and (2, +∞)

Simplify the expression

• (19k² -12k - 12) / 4k(5k-4)
• (19k² - 24k) / 4k(5k-4)
• (19k) /  4(5k-4)
• (19k - 24) / 4(5k-4)

Simplify the expression

• (12n² + 28n + 4) / (2n-5)(n+2)
• (12n² - 28n + 4) / (2n-5)(n+2)
• (8n) / (3n + 3)
• (12n² + 2n -3) / (2n-5)(n+2)