If the m-th power - (n-1) x + 1 of the polynomial 3x is a quadratic binomial of X, the value of M and N can be obtained As long as the answer. You have to explain under the line. Will be chasing points

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• 1. M3 + 27Mn + N3 = 729, m and N are positive integers, M + n is greater than Mn, then M + n = () I want to go over Chen
• 2. Given that the square of M = 2n + 4, the square of (2n) is m + 1, evaluate: (1) m + 2n; (2) the third power of 4N - the square of Mn + 2n Evaluation can only have numbers
• 3. If there is no x ^ 2 term in the square plus x plus K ^ 2x ^ 2-5 of the polynomial 3x to the third power-4x, then the value of K is
• 4. It is known that the quadratic power of m-2 + MX-3 of polynomial (m-2) x is about the quadratic trinomial of X It is known that the square-2 + MX-3 of the polynomial (m-2) XM is a quadratic trinomial of X, and the value of M is obtained.
• 5. If the third power of polynomial-5 of X - (2m-1) the second power of X + (2-3n) X-1 does not contain the quadratic term and the first term, the value of M, n is obtained As fast as the title
• 6. 3 to the power of 2012 minus 3 to the power of 2013 to the power of 211
• 7. Given that the m power of 2 multiplied by the m power of 4 multiplied by the m power of 8 = the 24 power of 2, find M
• 8. When n is greater than or equal to 1 and N is an integer, the n-th power of 2 plus 4 minus 2 can be divided by 30
• 9. How to use the idea of quadratic equation to find the minimum value of function y = (x ^ 2-2x + 6) / (x + 1), (x ≥ 0) We all know the solution of mean value inequality and derivative, but it is mentioned in the book that the minimum value of the function can also be obtained by using the discriminant of quadratic equation. How to solve it by using quadratic equation?
• 10. Find the minimum value of the function y = 9 / sin ^ 2x + 4sin ^ 2x, multiply a + b > = 2 by the square root of ab Can't we find the minimum value of the function y = 9 / sin ^ 2x + 4sin ^ 2x and multiply a + b > = 2 by the square root of AB? The answer is to change y = 9 / sin ^ 2x + 4sin ^ 2x to 4 / sin ^ 2x + 4sin ^ 2x + 5 / sin ^ 2x Using the above formula, is it unnecessary to do so? And there is a difference between the two results? Which brother would you like to answer in detail Note: sin ^ 2x is the square of (SiNx)
• 11. The m power of 2x minus the M + power of 2Y plus 7 times x times m + 1 minus the m power of y plus 1 minus the m power of 3 times x minus the m power of 2Y
• 12. A polynomial minus x3-2y3 equals X3 + Y3, then the polynomial is___ ．
• 13. If M is a positive integer, the degree of multiplication of m power of polynomial 2x by y plus m + 2 power of 2Y minus m + 3 power of 3 is ()A m+3 B m+2 C m+1 D m
• 14. The 2m-1 power of (a-b) &; (the 2m power of B-A) &; (the 2m + 1 power of a-b), where M = a positive integer
• 15. When a = - 1, M is a positive integer, the 2m + 1 power of (- a)=___
• 16. Given x + X - 1 = m, find the value of x 2 + X - 2
• 17. Find the maximum and minimum values of the function f (x) = 1 / 3 x to the third power - 21x square + 1 in the interval [- 1,4]
• 18. The density of human body is similar to that of water, and the mass of a normal adult is about 10______ Kg, its volume is about______ M 3
• 19. The density of human body is similar to that of water. The mass of a middle school student is about 50kg, and its volume is______ M3, the gravity is______  N．
• 20. The quality as like as two peas of basketball star Yao Ming is 140kg, and the density of human body is roughly the same as that of water. In Shanghai, the Tussauds Wax Museum has a solid wax figure identical to that made from paraffin wax. At least how much kg paraffin wax is needed? (known paraffin density of =0.9 * 10 3 times kg/ cubic meters).