+By = 7, a times the square of X + B times the square of y = 49, a times the third power of X + B times the third power of y = 133, a times the fourth power of X + B times the fourth power of y = 406 Try to find the value of: 1995 (x + y) + 6xy-17 / 2 (a + b) + 4

+By = 7, a times the square of X + B times the square of y = 49, a times the third power of X + B times the third power of y = 133, a times the fourth power of X + B times the fourth power of y = 406 Try to find the value of: 1995 (x + y) + 6xy-17 / 2 (a + b) + 4

7 = ax + by multiply both sides by (x + y): 7 (x + y) = (AX + by) (x + y) = ax & # 178; + ax + bxy + by & # 178; = (AX & # 178; + by & # 178;) + (a + b) xy = 49 + (a + b) XY ------ (1) similarly, 49 (x + y) = (AX & # 178; + by & # 178;) (x + y) = (AX & # 179; + by & # 179;) + (AX + by) xy = 133 + 7x

Given ax + by = 7, ax + by = 49, ax + by = 133, ax quartic power + by quartic power = 406, then the value of 2003 (x + y) + 6xy-2 / 17 (a + b) is________ ?

This paper is a case of the \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\x + y = u, xy = V, x + y = 2.5, If xy = - 1.5, a + B = 21, we get 4996, which is about equal

It is known that the fourth power of (3x + 2) = the fourth power of AX + the cube of BX + the square of Cx + DX + F. for all values of X, we can find: (1) the value of F; (2) the value of F; (3) the value of F; (4) the value of F; (4) the value of F; (4) the value of F; (4) the value of F; (4) the value of F; (
It is known that the fourth power of (3x + 2) = the fourth power of AX + the cube of BX + the square of Cx + DX + F
(1) The value of F;
(2) The value of a + B + C + D;
(3) The value of A-B + c-d

Let x = 0, then 2 ^ 4 = f, f = 162, if x = 1, then 5 ^ 4 = a + B + C + D + FA + B + C + D = 625 - 16 = 6093. If x = - 1, then (- 1) ^ 4 = a (- 1) ^ 4 + B (- 1) ^ 3 + C (- 1) ^ 2 + D (- 1) + F = A-B + c-d