2X (1 + 3) (quadratic of 1 + 3) (quartic of 1 + 3) (octave of 1 + 3) + 1, please

Equal to 43046720 x + 1

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1. 27 = the square of 4x
2. Calculate the square of (3 √ 2) + the square of √ 9 - (√ 8) - (√ 2 - √ 3) °
3. 0.75 = fraction 3 = fraction 24 = fraction 15 = fraction 12 ^ ()
4. 9/（）=0、75=（）÷（）=（）/24=（）%
5. 24 out of 30 is equal to 24 out of 25
6. One wire is 15 meters long, and the rest is just 4 meters long. How many parts of the total length of this wire have been used?
7. 0.75 = how many parts = how many * 24 = 12: how many = how many%
8. 3 / () = 1 / 24 () = 0.75 = (): 12 The sum of 3 / 5 of 15 is (), 12 times of 5 / 8 is () 1 / 4 of 20 is (), 1 / 4 of () kg is 20kg Given that 3 / 10 of a number is 12, then 3 / 8 of the number is () Given that the circumference of a circle is 6.28 decimeters, the circumference of the corresponding semicircle is () decimeters The ratio of 0.25:4 / 5 to the simplest integer is (), and his ratio is () 70 meters increase by 1 / 7 to (), () kg increase by 1 / 6 to 420 kg For a right triangle, the ratio of the degrees of the two acute angles is 4:5. The degrees of the two acute angles are () and ()
9. There is a kind of clothes in the shop. The original price is 40 yuan per piece, but after the price reduction, it's only 34 yuan per piece. How much cheaper is it?
10. Solve the inequality | x + 3 | - | x-3 | > 3, please 3Q
11. If the square of an ellipse x divided by the square of a plus the square of Y is equal to 1, and there is a point P on the ellipse so that its angle to two focal points E and F is 90 degrees, then the eccentricity of the ellipse is determined Range
12. -What is the sum of the square of the difference of 10 minus 5 plus five times of the opposite number of 2 / 5? Please explain the formula
13. How many squares equals 121!
14. 121 / 49th of the square of x = 0
15. Use 60 cm long wire to make a long rectangle with a width ratio of 3:2. What's the area of the rectangle?
16. The width of a rectangular garden is increased by four meters. The area is increased by 48 square meters. The increased rectangle becomes a square. Find the original garden area
17. If the length of a rectangle remains unchanged and its width increases by 4 meters, it will become a square and its area increases by 36 square meters. What is the area of the original rectangle?
18. The length of the foundation is 2A & nbsp; m and the width is (2a-24) m. A is used to represent the area of the foundation, and the area of the foundation is calculated when a = 25
19. How many square meters is 600 meters long and 240 meters wide? How much is 25 yuan per square meter?
20. What's the square of 11, what's the square of 12, what's the square of 25