![](data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 72 71" width="72"></svg>)
2X + 3 / 4-4-x 6 / 2 + 1 / 2 x
Original formula = 3 / 2 (x + 2) + 6 / (x + 2) (X-2) + 1 / (X-2)
=(3x-6+12+2x+4)/2(x+2)(x-2)
=(5x+10)/2(x+2)(x-2)
=5(x+2)/2(x+2)(x-2)
=5/(2x-4)
How to solve the square of X + 2x + 1 = 6
How to solve the square of X + 2x + 1 = 6
(x+1)^2=6
x+1=±√6
x1=-1+√6
x2=-1-√6
The equation kx2 - (k-1) x + 1 = 0 of X has rational roots, so we can find the value of integer K
(1) When k = 0, x = - 1, the equation has rational roots. (2) when k ≠ 0, because the equation has rational roots, if K is an integer, then △ = (k-1) 2-4k = k2-6k + 1 must be a complete square, that is, there is a non negative integer m, such that k2-6k + 1 = m2
RELATED INFORMATIONS
- 1. Given that the value of X & sup2; + 4x + 9 is equal to 5, find the value of 1 / 4 x & sup2; + X-10
- 2. 1.5 HP is about 1100 watts. Why do 1.5 HP air conditioners use 2 square copper wires? Is 1 square copper wire OK
- 3. A cuboid with a square bottom is 40 cm high. If the height is increased by 5 cm, the surface area will be increased by 80 square cm. Calculate the surface area and volume of the original cuboid
- 4. If the edge length of a cube is increased by 4cm, it will become a cuboid. The surface area of the cuboid is just 80 square percent more than that of the original cube Meters, the original cube volume. Urgent, fast, best before 9 o'clock It's not 8000
- 5. Given the quadratic power of x plus the quadratic power of 2 x plus y minus 6y plus 10, for 0, find the value of X and y
- 6. 2. The simplest common denominator of the square of x-x-12 is x + 2, the square of x-6x + 8 is x + 3, the square of X + X-6 is x + 4
- 7. Is x squared equal to y a function
- 8. Finding the minimum positive period of FX given the function FX = 2cosxsin (x plus one third) - root sign three sin square x + sinxcosx + 1
- 9. The minimum value of the function y = x + 12x-1 (x > 12) is___ ．
- 10. The minimum value of function f (x) = 12x2 − LNX is______ ．
- 11. The minimum value of function y = x2 + 2 / X-1 (x > 1) is (basic inequality)
- 12. Solving inequality MX ^ 2-2x + 1 > 0
- 13. Let m belong to R and m ≠ 0, and solve the inequality MX ^ 2 + 2x-3 / m
- 14. It is known that x minus 1 / x = 3. Find the square of x plus 1 / 2 of X The square of x plus 5x plus 1 equals 0. Find the square of X and the square of X
- 15. There is a process to find the general solution of X (1 + y Square) dx-y (1 + x square) dy = 0!
- 16. How to solve the problem dy / DX = Y / (the square of X + y)
- 17. The square of 9m - the fourth power of 25N
- 18. 4 to the power of 3 * a to the power of 4 * B, what is its power and what is its term (* is multiplication)
- 19. How to divide 18 by 2.5?
- 20. Simple calculation of 18 △ 2.5 And 5.63 × 6.34 + 0.563 × 36.3 (7.3 + 6.5) × half + 6.2 × half All of them should be simple, and (51 × 2 / 17 + 1.3) △ 3 (the number obtained keeps two decimal places) is not simple 1 / 2 + 1 / 6 + 1 / 12 + 1 / 20 + 1 / 30 + 1 / 42