It is stipulated that an operation a ⁃ B = AB + A-B, where a and B are real numbers, then a ⁃ B + (B-A) ⁃ B equals () A. a2-bB. b2-bC. b2D. b2-a
A ∧ B + (B-A) ∧ B, = AB + A-B + (B-A) × B + (B-A) - B, = AB + A-B + b2-ab + b-a-b, = b2-b
RELATED INFORMATIONS
- 1. "Ab is the moving chord on the parabola y = x ^ 2, and | ab | = a (a is constant and a > = 1), then the nearest distance between the midpoint m of the chord AB and the X axis"
- 2. In a series of equations, the unknowns are generally on the left side of the equation,
- 3. In the definition of linear equation with one variable, "all formulas with unknowns are integral" is illustrated with specific examples
- 4. When there are two unknowns or more unknowns in a linear equation of one variable, For example: 4 / 2x = 5x - 3 Find x
- 5. Two equations two unknowns X / 3.51 + Y / 2.78 = 0.62 X / (x + y) = 0.3 every step in the process of solving this equation is written out There is a very simple step. I just can't remember it,
- 6. Solve the equation [0.4 + x] × 6 = 5.40.4 + X. This is an unknown number × 6 is a multiplication sign
- 7. 3 / 4x minus 25% is 12
- 8. If (2x-6) ^ (- 3) is meaningful, find the value range of X
- 9. How much is 90-50 degrees and 39 minutes
- 10. What are 19 and 2? 1 composite 2 prime 3 odd 4 even piease
- 11. Write out a linear equation with one variable so that its solution is 5 and the coefficient of the term with unknowns is 4 / 5 In a hurry
- 12. Given X & sup3; - 16x & sup2; + mx-n divided by X & sup2; - 2x + 3, the remainder is - 18x + 15. Try to find the value of M, n
- 13. Given x = 1 / x, find the value of (X & # 178; - 5 / X-1 + 1) multiplied by X & # 179; - 1 / X & # 178; - 2x divided by (x + 3)
- 14. Given that the result of (x 2 + m x + n) (x + 1) does not contain x 2 term and X term, find the value of M, n
- 15. Function substitution method problem! Do not understand: F (x + 1) = x & # 178; + 3 find f (x) substitution, use t = x + 1, and finally write t back to x, then Why can't we replace x + 1 with X first?
- 16. How to understand the substitution method in high school function, for example
- 17. If f (x-1) = 2x & # 178; + 1, find the analytic expression of F (x)
- 18. Given f (x) = x & # 178; + 4x + 3, find the minimum g (T) and maximum H (T) of F (x) in the interval [T, t + 1] There is another problem, how to get ± 2.5 I'm so confused. I don't understand.
- 19. 2x²-8=0 (x-2)²-x+2=0 (x-3)²+2x(x-3)=0 (x-2)²=2x-4 (2x-1)²=x²-4 Solving quadratic equation with one variable by factorization
- 20. Square difference calculation 1、10.3*9.7 2. 1 and 3 / 13 * 10 / 13 How about this?