+- addition

– – subtraction

* – multiplication

/ – division

just have to perform the indicated operations on these fractions:

1. 35x^3b^3 OVER 48x^2b^5 * 12x^4b^4 OVER 7x^5b^2

2. a+2 OVER a^2-1 * a^2 + 7a – 8 OVER a^2 – 4

3. 9a^2 – b^2 OVER b^2c – 3abc + 9a^2c / b^2+6ab+9a^2 OVER b^3+27a^3 * b + 3a OVER b2-ab+9a^2

4.8r^3-t^3 OVER 2r + 3t / 4r^2t + 2rt^2 + t^3 OVER 2tz-tz^2 * 4r^2 + 12rt + 9t^2 OVER 2rz – tz

5. (2x^2 – 5y^2 OVER x^2 + xy – 2y^2) + (x-2y OVER x+ 2y) – (x-2y OVER x-y)

Factor the following:

1. 64-32a^4p^4

2. 243a^2-3 (4b-5c)^2

3. 8 – (2x-1) ^3

4. x^6 – y^6

5. bcx^2 – bdx + c^2x – cd