Bài Tìm biết 2 ) 3 ) 4 ) 5 ) - 2 ) 6 ) ( 2x + 3 ) - Dicamon

Question

Bài Tìm biết 2 ) 3 ) 4 ) 5 ) - 2 ) 6 ) ( 2x + 3 ) ( x - 4 ) + ( x - 5 ) ( x - 2 ) ( 3x - 5 ) ( x - 4 ) 7 ) ( 8x - 3 ) ( 3x + 2 ) - ( 4x + 7 ) ( x + 4 ) ( 2x + 1

Answer

3x-1)(2x+7)-(x+1)(6x-5)=7 + + +5 18x = 9; x = 1/3; 3x+2)(2x+9)-(x+2)(6x+1)=7 + 4x + 18 12x - 2 = 7; 18x=-11 odot x=- underline 11 18 (12x5) (4x-1) + (1 16x= 81 48x ^ 2 - 12x - 20x

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