7x 2x 3 5 x 2 July 8, 2019 16 32 64 128 7x 2 5 x )= 3 2x 1 7x 2 )( 2x 3 5 )( x 2 4x 9 7x 4 2x 5 )= 3 5x 2 )- 6 7x 4 2x 5 )=- 3 5x 2 Giải phương trình 7x 2x 3 5 x 2 11x 5 7x 3 2x x 2 What is the product 7x 2 )( 2x 3 5 )( x 2 4x 9 5 2x 3 )= 3 x 2 )+ 7x 9 2x 7