If a (a is not equal to 0) is a solution of the quadratic equation of one variable X & # 178; - 3x + M = 0, - A is a solution of the quadratic equation of one variable X & # 178; + 3x-m = 0, find the value of A

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• 1. Mx-a = 3x-b (M is not equal to 3)
• 2. Who can tell me all the properties of parity of mathematical function. For example, odd + even =?
• 3. The bottom of p-abcd is square, the bottom of PD ⊥ is ABCD, and the point E is on the edge Pb, Proving plane AEC ⊥ plane PDB When PD = AB twice the root and E is the midpoint of Pb, the angle between AE and plane PDB is obtained,
• 4. The children in the kindergarten class made 32 flowers, among which the red flower was three times as much as the yellow flower. How many did the children make the red flower and the yellow flower No equations
• 5. The perimeter of the rectangle is 19.4 meters, which is 0.8 meters less than twice the width. How long is the rectangle? (equation)
• 6. It takes 26 seconds for a train to pass the 396 meter bridge and 18 seconds to pass the 252 meter tunnel. How long is the train's body?
• 7. As shown in the figure, it is known that the quadrilateral ABCD is a regular quadrilateral, the angle EBC = angle ECB = 15 ° and the triangle ade is a regular triangle
• 8. Ninghai taxis charge a passenger fee according to the following regulations: the starting mileage is 3 kilometers, the starting fee is 5 yuan, the rental fee is 2 yuan per kilometer after exceeding the starting mileage, and 20% return subsidy is added for the part more than 6 kilometers, that is, the rental fee is 2.40 yuan per kilometer. The meter price only shows the full amount, and the mantissa is rounded down to yuan, Then Aunt Li should pay A. 21 yuan b.22 c.23 d.24
• 9. As shown in figure a, the side length of square ABCD is 4. Divide the diagonal line AC into several segments. Take each segment as the diagonal line to make a square. Suppose the sum of the perimeter of these squares How much of which AC is divided into five different stages (the process of solving)
• 10. Some math problems, help me look at it If the minimum positive period of the function y = cos & sup2; Wx Sin & sup2; Wx is 4 π, then the value of the positive number W is 2. The function f (x) satisfies the condition f (x + 2) = 1 / F (x) for any real number X. if f (1) = - 5, then f (f (5)) = In order to stabilize the market and increase farmers' income, the market purchase price a of an agricultural product is related to its market purchase price in the first three months, and the sum of squares of the difference between a and its market purchase price in the first three months is the smallest Month 1 2 3 4 5 6 7 Price (yuan / Dan) 68 78 67 71 72 70 The market purchase price of the product in July should be A. 69 yuan B. 70 yuan C. 71 yuan D. 72 yuan Need detailed process.. okay
• 11. The complete set u = AUB = {1.3.5.7.9}, an (cub) = {3.7}, and (CUA) NB = {5.9} is known=
• 12. Let u = R, a = {x | x ≠ 1}, then CUA=
• 13. If a = {X / x = a + B = ab-3, a, B ∈ (0, + ∞)} complete set u = R, then CUA=
• 14. Let u = {x | X be less than or equal to 5, and X belong to n *}, a = {x | x ^ 2-5x + q = 0}, B = {x | x ^ 2 + PX + 12 = 0}, and (CUA) UB = {1,2,3,4,5} Finding p q Is the question wrong? It's impossible,
• 15. Let u = R, a = {x | x2-5x-6 = 0}, B = {x | - a ＜ X-5 ＜ a}, and 11 ∈ B, why (CUA) UB = R
• 16. Suppose 1 = 5, 2 = 6, 3 = 7, 4 = 8, 5 =? Additional questions: 10 =? Intelligence questions It's all about intelligence. It's not that simple
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• 18. 3 * 3-1 * 1 = 8 * 1 5 * 5-3 * 3 = 8 * 2 7 * 7-5 * 5 = 8 * 3... How to describe and prove such a rule in words 3 * 3-1 * 1 = 8 * 1 5 * 5-3 * 3 = 8 * 2 7 * 7-5 * 5 = 8 * 3... How to describe and prove such a rule in words?
• 19. Mathematical problems (- 8.2) + 10 + 2 + (- 1.8), (0.8) + (0.7) + (- 2.1 = 0.8 + 3.5) 1 / 4 + (- 2 / 3) + 4 / 5 + (- 1 / 4) + (- 1 / 3) in addition, who has the answer to the mathematics exercise book of the second semester of grade 6? I want 5.5.6 from Shanghai OK, I'll give 100. If I can't play that much, it's 5.4
• 20. To solve the equations: 3x + 4Y = 115x − y = 3