If the equation 2x MX + 2 = 0 has two equal real roots, try to find the roots of the equation MX + x-m + 1 = 0 Given the set {2a, a - a}, what is the value range of real number a? How to answer this

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• 1. To prove that the equation MX ^ 2 + (M + 6) x + 3 = 0 must have real roots
• 2. When m is a value, the solution of the equation (x + 1) / (X-2) = (2m-3) / (M + 5) about X is equal to 0
• 3. If the solution of equation 5x-2m = 3 (x-2m) + 1 is negative, what is m equal to? If the system of inequalities x-3 (X-2) is less than or equal to 4,3 / 3 A + 2x is greater than x, and there is no solution, the value range of a is obtained
• 4. Why is the solution of the equation 3 / x + 6 / X-1 = x + m / X (x-1) equal to 1 / 2?
• 5. In the equation mx-2 / 5 + 2 = x + 2m / 5, when what is the value of M, X is equal to - 1?
• 6. It is known that one root of the equation 2x & sup2; - 5x + P-3 = 0 about X is - 4. Find another root of the equation and the value of P Please answer quickly
• 7. It is known that 2 is a root of the quadratic equation 5x & sup2; + bx-10 = 0 with respect to X. find another root of the equation and the value of B I have no answer. Please list the methods in detail. There are two methods
• 8. It is known that one root of the equation 2x2 + 5x + P-3 = 0 about X is - 4. Find another root of the equation and the value of P
• 9. Given that a is a root of the equation x2-5x + 1 = 0, then the number of bits of A4 + A-4 is______ ．
• 10. Given that a is a root of the equation x2-5x + 1 = 0, then the number of bits of A4 + A-4 is______ ．
• 11. On the equation MX ^ 2-2x + 1 = 0 of X, there is only one real number root, find M
• 12. It is known that the reciprocal sum of the two equations x-2x + k = 0 is 8 / 3,
• 13. If the difference between the two equations 2x2 - (K + 1) x + K + 3 = 0 is 1, then the value of K is 1______ ．
• 14. It is known that the two square differences of the X equation x & sup2; + 2x + 1-k & sup2; = 0 are equal to 2, and the value of K is obtained
• 15. Given that the square difference of the two equations x ^ 2-4x + 6K = 0 is equal to 8, then K is equal to 0 I got half of it
• 16. Given that the square of equation 2x + 3x + m is equal to two real roots of 0, one of which is twice of the other, we can help you to find the value of M
• 17. Excuse me, the square of (2x + 1) minus 5 is equal to 0, the solution equation is? Ask God for help
• 18. If the difference between the two equations x ^ 2 + 2x + K + 1 = 0 is 2 √ 3, then the value of K is
• 19. If the difference between the two equations 2x2 - (K + 1) x + K + 3 = 0 is 1, then the value of K is 1______ ．
• 20. If the difference between the two equations 2x ^ 2 - (k-1) x + K + 3 = 0 is 1, what is the value of K? The absolute value of (x1-x2) = the absolute value of B ^ 2-4ac / a [this is a theorem. So, 1 = (k-1) ^ 2-8 (K + 3) It's wrong. I must be very wrong! I'd like to know what's wrong with me.