X + 1 power of solving equation 3 * x + 1 power of 2 = 2x-3 x = several times of 6

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• 1. The second power of [2x + 5] - the second power of [2x-5]=
• 2. If X-5 power of 10 = 1, then 2x-8 power of 2 =?
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• 4. 2 a power = 3, 2 B power = 6, 2 C power = 12, find the equivalent relationship of a, B and C 1. If n power of 3 = 2, then 2n power of 3 + 2= 2. Given polynomial a = 3M square - 5m + 2, B = 3M square - 4m + 2, then the relation between a and B is? 1. A is greater than B 2. A is less than B 3. A = B 4 3. If the side length of a square is increased by 3cm, its area will be increased by 39m2, and the side length of the square will be calculated 4. If 2x + 3y-4 = 0, find the value of 9x power * 27y power
• 5. Seventh grade integer exponential power and its operation problems 1、x^(-2)y^(-2)÷[x^(-2)-y^(-2)] 2、[2x^(-2)+y]²-[2x^(-2)-y]² PS: ^ (- 2) is negative quadratic Please write down the whole process, thank you
• 6. How to measure 500g alcohol with measuring cylinder? (alcohol density = 0.8 × 10 cubic kg / m3) Tips: calculation questions
• 7. What is the volume of a cubic alcohol with a mass of 100g and a density of 0.8x10? 2. The mass of a metal material is 675g, and the volume is 250cm. Calculate the density of the material? If the metal is used to process a water mass of 810g
• 8. For the alcohol produced by the factory (the density is 0.8 × 10 to the third power of kg / M), the water content is required not to exceed 10%, so what is the range of alcohol density
• 9. 1 DM3 of alcohol, alcohol density is 0.8 times the third power of 10, then how much is the mass of alcohol kg
• 10. The buoyancy of a 0.05 cubic meter iron immersed in water is, and the buoyancy of the iron immersed in alcohol is
• 11. The X + 1 power of 3 and the X + 1 power of 2 are equal to the 2x-3 power of 6,
• 12. Let's relax and play a math game The first part: take a natural number N1 = 5, calculate N1 & # 178; + 1 to get A1; Part two: calculate the sum of all the numbers of A1 to get N2, calculate N2 & # 178; + 1 to get A2; Part 3: calculate the sum of the numbers of A2 to get N3, and then calculate N3 & # 178; + 1 to get A3; …… By analogy, a2013 = ▁▁▁▁▁▁▁▁▁▁
• 13. Let's relax and do a math game: Step 1: take a natural number N1 = 5, calculate N12 + 1 to get A1; step 2: calculate the numbers of A1 N 2 is obtained by the sum of N 22 + 1, and a 2 is obtained by calculating n 22 + 1; Step 3: calculate the sum of the numbers of A2 to get N3, and calculate N32 + 1 to get A3; … And so on, then a2011=
• 14. Let's relax and play a number game Step 1: take a natural number N1 = 5 [N1's 1 is the small one in the lower right corner, because it's too troublesome to play, so it's not so clear. Please forgive me.], calculate N1 & # 178; + 1 to get A1; Step 2: calculate the sum of all the numbers of A1 to get N2, calculate N2 & # 178; + 1 to get A2; Step 3: calculate the sum of the numbers of A2 to get N3, and then calculate N3 & # 178; + 1 to get A3 If you list them in turn, you will see 2008=________ .
• 15. Let's relax and play a number game a2013= The first step is to take a natural number N1 = 4 and calculate the square of N1 plus one = A1 The second part calculates the sum of the numbers of A1 to get N2, and calculates the square of N2 plus one to get A2 The third step is to calculate the sum of the numbers of A2 to get N3, and calculate the square of N3 plus one to get A3 . By analogy, a2013 =?
• 16. What is the law of the power of a number
• 17. An * an + 1 = (1 / 2) n power, BN = A2N, prove that {BN} is an equal ratio sequence A1=1
• 18. 1) It is proved that {lgan} is equal difference 2) {BN} is headed by B1, tolerance is D, and 2 ` B (B power of 2) is equal difference 2 2) Certificate ratio!
• 19. The {an} is an equal ratio sequence, the sum of the first n terms is Sn, and Sn = 2 to the nth power + a (n ∈ n} to find the value of a and the common term of {α n} The {an} is an equal ratio sequence, the sum of the first n terms is Sn, and Sn = the nth power of 2 + a (n ∈ n ＊) The general formula of a value and {α n} If BN = (2n-1) an, find the first n terms and TN of the sequence {BN} Urgent,
• 20. 21 + 22 + 23 + 24 +. + 2N-1 total n-1 term summation formula