Question

1. What is the simplified form of x to the fourth minus eighty one ? (1 point)x3 – 3x2 + 9x – 27
(x2 + 9)(x2 – 9)
x3 + 3x2 + 9x + 27
x3 + 3x2 – 9x – 27

2. What is the simplified form of question 2 ? (1 point)xyz squared times xyz
one over xyz squared
x3y2z2
x 4y4z

3. What is the excluded value of the rational expression quest 3 ? (1 point)–3
–2
0
2

4. What is the simplified form of question 4 ? (1 point)x minus three over x minus five
x minus five times x plus five
x plus five
x minus five