The area of a rectangle is 2A cube-4a square B + 2a, and its width is 2A. Find the length of the rectangle

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• 1. The area of triangle is the third power of 4A - 2A square B + 6ab square, and the length of one side is 2A (1) If a = 2, B = 1, find the height of (1)
• 2. What is the area of a triangle iron plate if its bottom length is (2a + 6b) meters and its height is (4a-5b) meters emergency
• 3. It is known that the perimeter of the triangle is (4a + 5b) cm, the first side is (2a-b) cm, and the second side is (a-b) cm longer than the first side. The side length of the triangle is calculated
• 4. If the perimeter of the triangle is 48, the first side is 4A + 3b, and the second side is 2a-b less than 2 times of the first side, then the third side is 4A + 3B______ ．
• 5. If the perimeter of the triangle is 48, the first side is 4A + 3b, and the second side is 2a-b less than 2 times of the first side, then the third side is 4A + 3B______ ．
• 6. The lengths of two sides of a triangle are a + B, 2a-b, and the perimeter of a triangle is 4A + 1 / 2B (a > b) (1) Find the length of the third side of the triangle; (2) When a = 3, B = 2, write the length of each side of the triangle
• 7. One side of the rectangle is 2a-b, and the other side is A-B smaller than it A = the square of X + the square of xy-y, B = - the square of X - 2XY + the square of Y. when x = 1, y = 1, find the value of 2a-b.
• 8. If one side of the rectangle is a-2b, and the other side is 2A + B larger than the first side, the perimeter of the rectangle is a-2b______ ．
• 9. If one side of a rectangle is 2A + B, and the other side is A-B longer than it, the perimeter is 2A + B______ ．
• 10. As shown in the figure, if the perimeter of the three figures is equal, then a: B: C=______ ．
• 11. The perimeter of a rectangle is 4A + ab. if the length of one side of the rectangle is represented by a, then the area of the rectangle is? Please explain the reason
• 12. Known: a rectangle area is 4A ^ 2-6a, its side length is 2A. Find the perimeter of the rectangle
• 13. It is known that the area of a rectangle is the square of a-3ab + 2a, and the length of one side is 2A. Find the perimeter of the rectangle
• 14. It is known that the area of a rectangle is 4a2-6ab + 2a, and one side of the rectangle is 2A
• 15. If the area of a rectangle is (6ab2 + 4a2b) cm2 and the length of one side is 2bcm, its perimeter is______ cm．
• 16. The square of (2a + b) - 8ab factorization factor; a, B are any real numbers, the total value of the quadratic power of a + the quadratic power of b-2a-4b + 8 is : A. negative B. positive c.0 D. non negative
• 17. Given that a and B are real numbers, and the square of a plus the square of B minus 2A minus 4B plus 5 is equal to 0, find the value of 2009 power of a multiplied by negative 2 power of B, and ask for the help of Dashen
• 18. A polynomial minus A2-B2 equals A2 + B2 + C2, then If a polynomial minus A2-B2 equals A2 + B2 + C2, then the original polynomial is? Hurry!
• 19. Proof: no matter a, B take any real number, the value of polynomial a * b * + b * - 6ab-4b + 14 is not less than 1
• 20. 1、 It is proved that when a and B take any real number, the value of square of polynomial a + square of polynomial b-2a + 8b + 18 is always positive 2、 It is proved that for any real number x, y, the square of polynomial 2x-6xy + 9y-4x + 5 is always positive There are two questions,