Bell Assignment: Perform the indicated operations.

1. 2 + 3 3 4

2. 1 - 6 7 11

3.4 - 3 8

FACTORING POLYNOMIALS ANSWERS

1. 4x2y(2x – 3y) 2. 2ac(7a+9c – 1) 3. (x-6)(x+6) 4. (2x – 5)(2x+5) 5. 8x(x – 3)(x+3) 6. (x – 3)(x2 + 3x +9) 7. (x + 2) (x2 – 2x + 4)

8. 2x (x + 4) (x2- 4x +16)

9. (x – 4) (x – 4) 10. (2x + 5) (2x + 5) 11. (3x – y) (3x – y) 12. (x – 7) (x+5) 13. (x – 4)(x+3) 14. (x – 5)(x – 4)

FACTORING POLYNOMIALS ANSWERS 15. (2x +3)(x – 7) 16. (4x +3)(x+1) 17. (3x + 2)(2x +5) 18. (3x – 8)(x+1) 19. (x – 2y)(x+1) 20. (a – b)(a +b)(x+y) 21. 3 (x+2)(x – 1)

(x+1)

Day Two

Adding/ Subtracting Rational Expressions

Steps for finding a common denominator

1.Put one denominator over the other 2.Reduce ** If the fraction does not reduce then set it equal to itself**3. Cross multiply **This is the common denominator**

1. Put one denominator over the other

2. Reduce:

3. Cross multiply to find common denominator:

10 = 5 . 42 21

10 42

210

Find the common denominator

for 3 and 5 10 42

Find the common denominator of 6 and 2 7 23

1.Put one denominator over the other:

2.Reduce :

3.Cross multiply to find common denominator:

7 . 23

Does not reduce set equal to itself 7 = 7 . 23 23

161

Find the common denominator for: 2 and 3

x+2 x2 - 4

1.Put one denominator over the other: When dealing with variables it is best to factor denominators!!

2.Reduce

3.Cross Multiply

x+2 (x+2)(x-2)

x+2 = 1 (x+2)(x-2) x-2

(x+2)(x-2)

Perform the indicated operation: 1 + 2 3 5

11 15

Perform the indicated operation: 2 + 3 x x2

1.Find common denominator:

2.Add fractions:

x2

2x+3 x2

Perform the indicated operation: 3 + 4 x-2 x+21.Find the common denominator:

2.Add the fractions:

(x-2)(x+2)

7x – 2 x2 - 4

Perform the indicated operation: 4 - 3 x x – 3 1.Common denominator:

2.Subtract Fractions:

x(x – 3)

x – 12 x(x – 3)

Perform the indicated operation: 5 - 6x x – 2 x2 + 2x1.Common Denominator:

2.Subtract Fractions:

x (x – 2)(x + 2)

- x+22 (x+2)(x-2)

Perform the indicated operation: 3x + 2

x+4 x2 – 16 1.Common Denominator:

2.Add Fractions:

(x+4)(x-4)

3x2 – 12x + 2 x2 – 16

Perform the indicated operation: 6 - 3 x – 1

Perform the indicated operation: 3x + 4 x – 5