2 2x 5 7 July 8, 2019 16 32 64 128 2x 2 5 7x 2x 2 5 7 derivative 2x 2 7x 5 0 2x 2 7x 5 factor 2 2x 5 7 2 x )= 0 2 2x 5 x 7 2 2x 5 )= 3x 7 3 2 2x 5 7 3 x 2 2x 5 7 2 2x 3 x 5 7 3x 2x 5 7x 2 3 2 2x 2 7x 5 1 2 2x 7 )= 5 3x 6 2x 2 7x 5 0 solve by factoring
