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Using factorization to calculate 1,1.4 & sup2; × 9-2.3 & sup2; × 362,52 & sup2; + 48 & sup2; + 52 × 96
1.4²×9－2.3²×36 =1.4²×3²－2.3²×6²=（1.4×3）²－（2.3×6 ）²=4.2²-13.8²=（4.2+13.8）（4.2-13.8）=18×（- 9.6）= -172.852²+48²+52×96 =52&...
Factorization of 2 (3a & sup2; - b) - A (3b-4)
RELATED INFORMATIONS
- 1. (A & sup2; - B & sup2;) + (3a-3b) how many factorizations are there~
- 2. The following formulas are divided into: (1) 1 / A, 3 / 4A & sup2; B, 1 / 6ab & sup2; C; (2) 1 / 2x-2,1 / (x-1) & sup2;
- 3. General score: (2-x) ^ 2 / 1 and x ^ 2-4 / X
- 4. X ^ 2 + 1 / X and (x + 1) ^ 2 / 1
- 5. Why can't we simply understand the concepts of positive and negative numbers as follows: the number with "+" is positive, and the number with "-" is negative
- 6. In the same problem, the quantities expressed by positive numbers and negative numbers have the following properties______ The meaning of the book
- 7. In the same problem, the quantities expressed by positive numbers and negative numbers have the following properties______ The meaning of the book
- 8. Is 0 the dividing point between positive and negative numbers? There is a question that says 0 is the dividing point between positive and negative numbers, right?
- 9. On the number axis, the number on the left must be negative, and the number on the right must be positive? Or do you want to decide which side is the positive direction and which side is the positive number?
- 10. On the number axis, the number on the left is negative and the number on the right is positive The center is 0
- 11. First simplify, then calculate: 6A + 2A & sup2; - 3A + A & sup2; + 1, a = - 5 - 3 / 2a-5 / 6A + 1 / 3b-1 / 6B, a = 2, B = 6, 3ab-4 / 5x-4ab, x = 5, a = 1 / 3, B
- 12. Let a, B, C be the trilateral length of △ ABC, satisfying a & sup2; + 2B & sup2; + C & sup2; - 2b (a + C) = 0
- 13. Given 1 / A-1 / b = 1 / 3, find (- 3A + 4AB + 3b) / (2a-3ab-2b)
- 14. (2x-3) (2x + 3) = the square of AX + BX + C to find a = b = C=
- 15. If ax squared + BX + C = (2x-1) - 3, then a + B + C is equal to A-B + C
- 16. If the side lengths a, B, C of △ ABC satisfy a & sup2; + B & sup2; + C & sup2; + 50 = 6A + 8b + 10C, it is proved that △ ABC is a right triangle
- 17. If real numbers x, y and Z satisfy (x-z) square-4 (X-Y) (Y-Z) = 0, then the following equations must be true: A, x + y + Z = 0, B, x + y-2z = 0 C. Y + z-2x = 0 d, Z + x-2y = 0 try to talk about the process!
- 18. Let the real numbers a, B and C form an equal proportion sequence, and the non-zero real numbers x and y are the median of the equal difference between a and B, B and C respectively, and prove that ax + CY = 2
- 19. If a, B, C are real numbers, and a of B is equal to C, B of B is equal to C of a, find the value of a minus B plus C of a plus B minus C
- 20. If x and y are nonzero real numbers such that | x | + y = 3 | x | y + X3 = 0, then x + y equals () A. 3B. 13C. 1−132D. 4−13