1. The document contains 10 math problems involving expressions, polynomials, and factoring. 2. The problems cover a range of algebraic skills like combining like terms, factoring quadratics, and canceling common factors. 3. The high level goal is to practice various algebraic manipulation and factorization techniques.

1. 1. 121a2 (-121a2 )
2. -x3 – 3x2 + 4x – 10 – (3x2 + x2 – 5x + 4)
3.
3.1 xyz + x5y3z4
3.2 x2yz + 20x2y2z2
3.3 81x6yz + x6y4z
3.4 132x8y2z
4. (3a – b)(3a + 4b)
5. (2m + 12n)2 mn
6.
6.1 (x2 – 5 – 4x)(2x – 3)
6.2 (x2 + 5 – 5x)(2x – 3)
6.3 (x2 + 5 – 4x)(2x + 3)
6.4 (x2 + 5 – 4x)(2x – 3)
7. (4a2 – 2a – 20) ÷ (a + 2)
8. (3b2 – 2b – 5) ÷ (b + 1)
9. (3x – 2)(9x2 + 6x + 4)
10. (a – 2)(a2 – 4a + 3) (a2 – 5a + 6)