The equation log3x ^ 2 + mlog1 / 3x ^ 2 + 5 = 0 of X has two equal real roots on (9, ∞), then the range of real number m is

(1,3)

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1. The interval of a real root of equation x ^ 3-x-1 = 0 is
2. Let m be an integer and both of the equations 3x2 + mx-2 = 0 are greater than - 95 but less than 37, then M=______ ．
3. Let m be an integer and both of the equations 3x2 + mx-2 = 0 are greater than - 95 but less than 37, then M=______ ．
4. (1) Given that one root of the equation x & # 178; + 3x + M = 0 is twice the other root, find the value of M. (2) given the function y = MX & # 178; + 2 (M + 1) x + m, When m is a real number, the function image and X-axis: (1) have two different common points? (2) only one common point? (3) no common point? Please write the details,
5. If the two roots of equation 3x & # 178; + MX + n = 0 are 1, - 5 respectively, then M = n = necessary process
6. We know that the sum of two squares of the equation x2 + (M + 9) x + 2m + 6 = 0 is 24, then the value of M is equal to?
7. It is known that the sum of squares of X equation x & # 178; - 2 (M + 1) x + M & # 178; - 2 = 0 is equal to 8?
8. Given that the sum of squares of the two equations x ^ 2 + (M + 9) x + 2m + 6 = 0 is 24, what is the value of M
9. We know the equation x & # 178; - 2mx-2m-4 = 0 about X. when we prove the value of M, the sum of squares of the two equations is equal to 7
10. When m is the value, the intercept of the line (2M2 + M-3) x + (m2-m) y = 4m-1 on the X axis is 1
11. If a is the real root of the equation x + log3x-3 = 0 and B is the real root of X + 3 ^ x-3, find a + B
12. If the absolute value of the equation x + 1 plus the absolute value of X-1 about x equals that a has a real root, then the value range of the real number a is () A a is greater than or equal to 0 B A is greater than or equal to 0 C A is greater than or equal to 1 D A is greater than or equal to 2
13. To solve the equation with absolute value: given that x is a real number, M = | x + 1 | + | x + 2 | + | x + 3 |, find the minimum value of M
14. If there are exactly three different real solutions to the equation of X: the second power of X - 2 times the absolute value of X + 2 = m, please guess the value of M and verify it
15. If the absolute value of equation - X & # 178; + 4x-3 = KX has three real solutions, then K=
16. When the real number m takes what value, the equation 4x + (m-2) x + (m-5) = 0 has: (1) the absolute value of positive root is greater than that of negative root When m is a real number, the equations 4x + (m-2) x + (m-5) = 0 are as follows: (1) Is the absolute value of positive root greater than that of negative root? (2) Both are greater than 1?
17. 2,4 of 5,9 of 10,16 of 17, find the law
18. First simplify, then evaluate: - (square of X + square of Y) + [- 3xy - (square of X - square of Y)], where x = - 1, y = 2
19. First simplify and then evaluate: - (x2 + Y2) + [- 3xy - (x2-y2)], where x = - 1, y = 2
20. Simplification: - (square of X - square of Y) + [- 3xy - (square of X + square of Y)]: Xy - {the square of 1 / 2x - [the square of 3y-2 (the square of xy-3y) - 1]} If we know the square of a = 2A - 3AB, B = the square of a + 2Ab, we can find: