Solution equation: (8x-50) / 3 - (10x + 40) / 5 = 10

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• 1. There are six cards with 123456. If you put a negative sign in front of the number of some cards to make the sum of these cards 1, list all the formulas There are six cards with 123456. If you put a minus sign in front of the number of some cards to make the sum of these cards 1, list all the formulas
• 2. The second power of (a-b) multiplied by (M + n) - (- m-n) (B-A)
• 3. Proof: the equation (x-1) (X-2) = m has two unequal real roots
• 4. The solutions of the equation | x + 5 | - | 3x-7 | = 1 are______ One
• 5. 16 + 8x = 40 to solve the equation
• 6. There are six digital cards below. How many cards can you draw to ensure that there are both odd and even numbers? (123456) There are six digital cards below. At least a few cards should be drawn to ensure that there are both odd and even numbers? (123456) 2. How many cards must be drawn from a deck of playing cards (54) to ensure that there must be a spade?
• 7. What is the number whose square root equals itself? What is the number whose square root equals itself?
• 8. No matter what the value of P is, does the equation (x-20) (X-30) - P square = 0 always have two different real roots
• 9. Solution equation: 3x-11 / 16 = 5 / 16 Come on
• 10. There are six cards with the number 123456. If you add a negative sign in front of the number of some cards and make the sum of the six cards equal to 1, the formula will be given
• 11. 2 / x + 5 = 1 / 3x to solve the equation
• 12. No matter what the value of M is, does the equation 2 times the square of X - (4m-1) the square of x-m-m-m = 0 have two unequal real roots? Why? Let (x + m) be the square of (x + m) + n Square of x-2x-3 = (x -) square + () Square of X + PX + q = (x +) square + () Solve the following equation The square of (4x-1) - 10 (4x-1) - 24 = 0 The square of (3x-2) = 9x Solve the equation and judge the root of the following equation: 2 times the square of X - 5x + 1 = 0 5x（5x-2）=-1 Square of (x-4) + 2 (x + 1) = 0 Square of X + square of 2x-m = 0 (M is a known number) The length of a rectangular open space is 24 meters and the width is 12 meters. Now we need to draw a small rectangular area in the center of it to plant flowers, and plant grass around the rest. If the width of the four sides is the same, the area of the small rectangle is 5 / 9 of that of the original rectangle, How many meters are the length and width of the small rectangle? Square of (x-a) = 4 (square of x-a) (a is a known number) It's a process!!! Process process!!! Do all the questions!!! Urgent demand!!!
• 13. Given that the first power of 3-2 = 1, the 2010 power of 3-2 =?
• 14. Among the four cards with numbers - 1, 0, 1 and 2 written on them, one card will be extracted and put back, and then one card will be extracted. The probability of the point with the number extracted for the first time as the abscissa and the number extracted for the second time as the ordinate falling in the first quadrant is 0___ ．
• 15. Solving equation 3x 1.4-x -------- = 10.50.4 3X 1.4-X ___ _ ______ =1 0.5 0.4 Why do I always count 27 —— seventeen
• 16. If there are two unequal real roots of equation (1 / 2) ^ (absolute value (x-1)) = m, find the value range of M
• 17. Let 3 to the power of a = 4 to the power of B = 36, can we get the result of 2 / A + 1 / b? If so, what is it?
• 18. The 6 numbers of 123456 can be used to form a 4-digit number Shi that is not repeated and 5,6 are not adjacent to each other
• 19. Solve the equation 6 / x ^ 2-25 = 3 / x ^ 2 + 8x + 15 + 5 / x ^ - 2x-15 Is it a person
• 20. Solution equation: | 3x-5 | = 1-x