It is known that m and N are positive numbers with {MX + NY = mm + NN} nx+my=2mn Note: {MX + NY = + n squared Nx + my = 2Mn is a system of quadratic equations x+y=?

RELATED INFORMATIONS

• 1. 1. CP and BP divide ∠ DCA and ∠ abd equally, and try to explain: ∠ P = 1 / 2 (∠ a + ∠ d) 2. In △ ABC, ab = AC, the center line BD on the side of AC divides the perimeter of △ ABC into two parts, 12cm and 15cm, and calculates the length of each side of the triangle 3. In △ ABC, a = ACB, CD is the bisector of ACB, CE ⊥ AB is e (1) Try to explain ∠ CDB = 3 ∠ DCB (2) If ∠ DCE = 48 °, calculate the degree of ∠ ACB 4. In RT △ ABC, ∠ ACB = 90 °, CD is the height on the edge of AB, ab = 13cm, BC = 12cm, AC = 5cm, and find the length of CD 5. In the quadrilateral ABCD, e and F are the midpoint of AD and BC respectively. Given that the area of quadrilateral ABCD is 1, calculate the area of quadrilateral debf There's no way to make a picture. I also want to have a picture, so you can do it. Oh, and, 》OK, I'll try to wait at 8:20.
• 2. Junior one mathematics super problem! It is known that in △ ABC, high be and CF intersect at O, AE = AF, which means ob = OC
• 3. Let the root of X be the smallest A. - 4 b.4 c.0 D. does not exist I think we should choose D. x is a number ≤ 4. There are many columns of numbers smaller than 4~ I don't know if I'm wrong or the answer is wrong
• 4. Let's write the following equation in the form of Y expressed by an equation containing X 2x-y=3 -y=3-2x y=3+2x 3x+y-1=0 y=1-3x
• 5. The solutions of the equations a (5x-3) / 5 = (3a + 1) x / 3 and 5 (x + 2) = 2A + 3 of X are the same
• 6. 1. Fill in the appropriate number in the brackets below, which is twice the solution of the first equation. 5x = 10 x + [] = 14.6
• 7. Judge whether it is the solution of the following equation (1) 3 / 5x = 1 (x = 15, x = - 5) (2) 2x-1 / 3-10x + 1 / 6 = 2x + 1 / 4-1 (x = 1 / 4, x = 1 / 6) Urgent!
• 8. From the numbers in brackets of the following questions, find out the solution of the previous equation: 3 / 5x-8 = 1 (x = 15, x = - 5); 3 (x + 1) = 12 (x = 3, x = 5),
• 9. If x − 2Y + 1 ≥ 02x − y − 1 ≤ 0, then the maximum value of S = x + y is______ ．
• 10. The m power of X multiplied by the square of X multiplied by the - (M + 1) power of X
• 11. I'm looking for two math problems in grade one! 1. Find all positive integer solutions of xy-3x-3y + 6 = 0 2. Judge the number of positive solutions of the equation x ^ 3-2x ^ 2 + 2 = 0 by classification discussion Please write down the process clearly!!!!!!!!!!
• 12. Solve the equation AX = B (where a and B are known numbers) There is no mistake in this question
• 13. Let a > 1, then log (0.2) a, the power of 0.2 a, the power of 0.2 a
• 14. Square of factorization factor M (A-3) + 4 (3-A)
• 15. The problem of factorization. Given (x + x1) (x + x2) = x ^ 2 + 2x-15, and x1 ≥ X2, find the value of x1, x2
• 16. Given [xix2 + PX + q = 0] = [2], find P2 + Q2 + PQ
• 17. If P1 * P2 = 4 (Q1 + Q2), it is proved that at least one of the quadratic equations x + P1x + Q1 x = 0 and X + P2 x + Q2 = 0 has real roots Try to be quick,
• 18. The reason why the earth is the only planet in the solar system with living matter External conditions: stable () Internal conditions: the earth () is moderate, and the primitive atmosphere is suitable for organisms after long-term evolution
• 19. How are satellite stars, solar system, cosmos, planets and galaxies arranged in descending order
• 20. The only star in the solar system is (), and the nearest planet to the sun is ()