| a d c b c
|
| 4.8 Simplify . No negative exponents.
|
| 1. (x2y/z5)-5
|
| az
25 /x10y5 |
| bx5y4z8 |
| cx6y3/z15 |
| dnone
of the above |
| 2. Convert to decimal notation.
8.96x109
|
|
a0.0000896 |
|
b896,000 |
|
c8,960,000 |
|
dnota |
| 5. 1 |
| 3. Factor. 10t5
+ 15t4 - 19t3 |
|
a 5t3(2t2
+ 3t - 19) |
|
b t2(10t
+ 15 - 19) |
|
c t3(10t2
+ 15t - 19) |
|
dnota |
| 4. Factor. x9y6
- x7y5 + x4y4
- x3y3
|
|
a x3y3(x6y3
- x4y2 - xy ) |
|
bx3y3(x6y3
- x4y2 + xy - 1) |
|
cx3y3(x6y3
- x3y2 + xy - 1) |
|
dnota |
| 5. What is one factor of 5x3
+ 4x2 + 10x + 8
? Hint: Factor by grouping ! |
|
a (x2 +
4) |
|
b (x2 -
4) |
|
c (5x
+ 4) |
|
dnota |
| written: |
| 5.2 |
| 6. Factor x2
+ 4x - 12 = (x - 2 )(x + 6) |
| 7. Factor
x2 - 5x - 24 = (x - 8
)(x + 3) |
| 8. Factor x2
- 9x + 8 = (x - 1 )(x - 8) |
| 9. Factor x2
+ 2x + 1 = (x + 1 )(x + 1) |
| 10. Factor
50x2 + 250x - 1200 ?? Hint. Factor out a
50 first. Then factor again. 50(x2 +
5x - 24) = 50(x + 8 )(x - 3) |
| 11. Factor: x2
- 16x + 64 = (x - 8 )(x - 8) |