When x is equal to 1, the value of the square of 3ax + BX is 2, then when x-3, the square of AX + BX is equal to 1

When x is equal to 1, the value of the square of 3ax + BX is 2, then when x-3, the square of AX + BX is equal to 1

When x is equal to 1, the square of 3ax + BX is 2
Namely:
3a+b=2
When x = 3, the square of AX + BX = 9A + 3B = 3 (3a + b) = 3 × 2 = 6

It is known that the solution of the equation A-X = bx-3 is x = 2 (a is not equal to 0 and B is not equal to 0) to find a of B minus B of A

It is known that the solution of the equation of 2 / 2 (A-X) = 3 / 3 (bx-3) about X is x = 2 (a is not equal to 0 and B is not equal to 0). Find a of B minus B of A
Equation with x = 2: 2 / 2 (A-2) = 3 / 3 (2b-3)
3a-6=4b-6
3a=4b
A of B = 4 of 3
B of a = 3 of 4
A of B minus B of a = 4 of 3-3 of 4 = = 7 of 12

If the parabola y = AX2 + BX + C (a ≠ 0), the axis of symmetry is a straight line x = 2 and passes through the point P (3,0), then a + B + C=______ ．

∵ the axis of symmetry is a straight line x = - B2A, and the axis of symmetry is a straight line x = 2, ∵ - B2A = 2, that is, B = - 4A ①. Substituting P (3, 0) into y = AX2 + BX + C, 9A + 3B + C = 0 ②, substituting ① into ②, C = 3A, ∵ a + B + C = a-4a + 3A = 0

If the solution set of quadratic inequality AX2 + BX + C > 0 is (- 1 / 2,1 / 3), then the value of a + B is

(x+1/2)*(x-1/3)