8 3 (- 4x 2 7 July 8, 2019 16 32 64 128 (- 8 )*( 7 1 2 )*( 4x 3 6 )= 0 7x 5 8 4x 3 2 5x 8 3 4x 7 2 8 4x 3 2 4 2x3 7x2 8 3 (- 4x2 )+ 7 answer 5x 8 3 ≥ 4x 7 2 x ∈ r 3 4x 8 )-( 7x 2 3 4x 1 2 7 8 7x 3 4x 8 x 2 2 7 3 4x )+ 8 18
