How to find that the square of x minus x minus 2 equals 0,

RELATED INFORMATIONS

• 1. (2x + 3) square = x square - 8x + 16
• 2. Given that x-3 divided by the square of x minus 1 = a divided by X + 1 minus B divided by X-1, find the value of a and B
• 3. The square of x-7x-3 = 0 Method of preparation. It's a process
• 4. Y = half (xsquare - 7x + 3) How to solve the above problem There's another one, this one Y = (xsquare - x + 1) / (xsquare - 8x + 15) find the value range of independent variable (- ∞, 3) ∪ (3,5) ∪ (5, + ∞) don't do this, don't understand
• 5. The real root of square x minus 6x plus 9
• 6. X square + 2XY + y square + X + y + 6 = 0 Please read the title clearly
• 7. 1. The symmetry equation of circle x ^ 2 + y ^ 2-2x-6y + 9 = 0 with respect to line 2x + y + 5 = 0 is: A.: (x + 7) ^ 2 + (y + 1) ^ 2 = 1 B.: (x + 7) ^ 2 + (y + 2) ^ 2 = 1 C.: (x + 6) ^ 2 + (y + 2) ^ 2 = 1 D.: (x + 6) ^ 2 + (Y-2) ^ 2 = 1 2. A beam of light is reflected from point a (- 2,1) to circle C: (X-2) ^ 2 + (Y-2) ^ 2 = 1 via X axis. The shortest path of light is______ 3. It is known that the equation of circle C is x ^ 2 + y ^ 2-2y-3 = 0, and the line L passing through point P (- 1,2) intersects circle C at two points a and B. If │ ab │ is minimized, then the equation of the line is______
• 8. If the circle x2 + Y2 + 2x + 2by + B2 = 0 is symmetric with respect to the line x + y = 0, then B=
• 9. ② "X 2-y 2-6x + 8y = 7" is the result of "x + y = 7"___ .
• 10. The random variables X and y are independent and identically distributed. They are subject to n (0,1 / 2). The expectation and variance of | X-Y | can be obtained Probability super problem
• 11. If the absolute value of the difference between the two roots of the linear equation x ^ + MX + M-1 = 0 is 2, then the value of M is?
• 12. It is known that the two of the equations x + MX-3 = 0 about X are x 1, x 2, and the absolute value of X 1-x 2 = 4 to find the value of M
• 13. Given x ^ 2-xy = 10, xy-y ^ 2 = 20, find: x^2-y^2 x^-2xy+y^2
• 14. If # is a new symbol, let x # y = XY + X + y, then 2 # M = - m in 16
• 15. If X-Y = - 3, find the value of 2 / 2 x + y-xy
• 16. Simplify x + 1 / 2x + X + 1 / 1-x
• 17. If we know that | x | = 5, | y | = 2, and XY > 0, then the value of X-Y is equal to () A. 7 or - 7b. 7 or 3C. 3 or - 3D. - 7 or - 3
• 18. Given x = y = 8, xy = 12, find ①x^2+xy^2 ②x^2-xy+y^2 ③x-y ④(x-y)^2 Write a process OK
• 19. Given the set a = {x, x 2, XY}, B = {1, x, y}, and satisfying a = B, find the value of real number x, Y & nbsp
• 20. If LXL = 4, Lyl = 5, and LX YL = Y-X, find the values of X and y