3A + (- 8A + 2) - (3-4A) where a = - 2 / 1
3a+(-8a+2)-(3-4a)
=3a-8a+2-3+4a
=-a-1
=2/1-1
=-2/1
RELATED INFORMATIONS
- 1. 3A * 4A = 12a ^ 2, right? If 4 * 4A = how much?
- 2. The simplification process of the following integral format (2a & # 178; b-5ab) - 2 (- AB-A & # 178; b) is simplified The reduction process of (2a & # 178; b-5ab) - 2 (- AB-A & # 178; b) 1-3 (x-1 / 2Y & # 178;) + (- x + 1 / 2Y & # 178;) reduction process (- X & # 178; y + 3xy-4) + 3 (X & # 178; y-xy + 2) reduction process -1 / 4 (2k & # 179; + 4K & # 178; - 28) + 1 / 2 (K & # 179; - 2K & # 178; + 4K) reduction process 3x & # 178; - (2x & # 178; + 5x-1) - (3x + 1) where x = 10 is the simplification process (xy-3 / 2y-1 / 2) - (xy-3 / 2x + 1) where x = 10 / 3, y = 8 / 3 It will be handed over to the teacher tomorrow
- 3. 5ab & # 178; - {2A & # 178; B-3 [AB & # 178; - 2 (2Ab & # 178; + A & # 178; b])}, where a and B satisfy | a + 1 | + (b-2) 178; = 0
- 4. 5ab & # 178; - 6 [3 / 2A & # 178; B-2 / 3 (4a & # 178; B + 2Ab & # 178;)] where a = 1, B = - 1
- 5. Decomposition factor 2A & # 178; - 2Ab, 3AB & # 178; + A & # 178; b
- 6. 10ab-3 + 6b-5a = (10ab-5a) - 3 () fill in the brackets
- 7. 2a of 5A ^ 2B + 3b of 10ab ^ 2
- 8. When a = 2012, finding the algebraic formula (5a & # 178; - 2A & # 178; + 3a-1) can be sloppy. Xiao Ming copied the known condition to a = 2102, and then the answer is still right, What's going on? Can you tell me why?
- 9. For any non-zero natural number a, B, a ⊗ B = 2 × a + B, if a ⊗ 2A ⊗ 3a ⊗ 4A ⊗ 5A ⊗ 6a ⊗ 7a ⊗ 8A ⊗ 9A = 3039, find a=______ .
- 10. Given 3A + B = 10000, 3a-b = 0.00001, find the value of B & # 178; - 9A & # 178
- 11. (1)√3a-(√12a+√18a) (2)√6(√1/12-√12) (3)(√3+√2)ˆ2006·(√3-√2)ˆ2006
- 12. 12a^6-3a^b^2
- 13. Calculation: (12a ^ 3-3a) / (3a) - (2a) ^ 2
- 14. 3a^3-6a^2+12a
- 15. 3a-12a^2+18a^3 Factorization
- 16. Decomposition factors: (2a + b) 178; - (a-b) 178;, (X & # 178; + Y & # 178;) (X & # 178; + Y & # 178; - 4) + 4, the process is more detailed
- 17. 2 (X-Y) + 1 / 2A & # (Y-X) factorization
- 18. If we define an operation "*": a * b = A-B / AB-1, try to find the value of 2 * (- 3 / 5) Such as the title
- 19. Define a kind of operation [?
- 20. Define an operation: 2! = 2 * 1, = 3 * 2 * 1, = 4 * 3 * 2 * 1. By analogy, try to calculate 100! / 98=________ .