3^4х+2*16/9*4^2х+2=5 1/16

3^4 x+2×16/9×4^2 x+2 = 81/16(1241 x)/9+2 = 81/16(1241 x)/9+2 = (1241 x)/9+18/9:(1241 x)/9+18/9 = 81/16(9 (1241 x+18))/9 = 9×81/169×81/16 = (9×81)/16:(9 (1241 x+18))/9 = (9×81)/16(9 (1241 x+18))/9 = 9/9×(1241 x+18) = 1241 x+18:1241 x+18 = (9×81)/169×81 = 729:1241 x+18 = 729/161241 x+(18-18) = 729/16-1818-18 = 0:1241 x = 729/16-(18×16)/1616 (-18) = -288:1241 x = 729/16+-288/16729/16-(288)/16 = (729-288)/16:1241 x = (729-288)/16729-288 = 441:1241 x = 441/16x = 441/(16×1241)16×1241 = 19856:Answer: | x = 441/19856