4 7x 1 2 x July 8, 2019 16 32 64 128 X 4 7x 2 1 0 √ 7x 1 2 √ x 4 7x 4 x 2 6 1 3x 7 9x 4 1 2 x 9 7x 3x 1 2 x 7x 5 )= 4 7x 4 )+( 2 1 2x 7x 4 2x 1 x 2 4 x 2 7x 1 x 2 4x 21 2x 4 3x 1 7x 2 x X 4 7x 2 1 factorise Solve 7x 1 4 x 2 Factorize x 4 7x 2 1 F x )=- 3x 4 7x 2 1 4 2 x )+ 1 7x 3 x 2 7x 4 2 x 5 )= 8x 1