Вычислите: 1.75 - 1 11/17* 51/56+ 0.75: (4- 1.2*(3.25- 1 1/12+ 6 2/3: 20)) (-0,1) в квадрате

(1.75-1 11//17*51//56+0.75: (4-1.2*(3.25-1 1//12+6 2//3: /(-0,1)^2=(1.75-28//17*51//56+0.75: (4-1.2*(3.25-1 1//12+6 2//3: /(-0.1)^2=(1.75-1.5+0.75: (4-1.2*(3.25-1 1//12+6 2//3: /(-0.1)^2=(0.25+0.75: (4-1.2*(3.25-1 1//12+6 2//3: /(-0.1)^2=(0.25+0.75: (4-1.2*(13//6+6 2//3: /(-0.1)^2=(0.25+0.75: (4-1.2*(13//6+20//3: /(-0.1)^2=(0.25+0.75: (4-1.2*(13//6+1///(-0.1)^2=(0.25+0.75: (4-1.2*2.5))/(-0.1)^2=(0.25+0.75: (4-3))/(-0.1)^2=(0.25+0.75)/(-0.1)^2=1/(-0.1)^2=1/0.01=100// - черта дроби 

x^2+(x+1)^2+(x+2)^2=302

x^2+x^2+2x+1+x^2+4x+4=302

x^2+x^2+x^2+4x+2x+1+4=302

3x^2+6x+5=302

3x^2+6x-297=0

x^2+2x-99=0

d=4-4*1*(-99)=400

x1=20-2/2=9

x2=20+2/2=11

pervaja cisla eto 9,vtaraja 11 i naidem tretiju

9^2+11^2+x^2=302

202+x^2=302

x^2=302-202=100

x=10

otvet: 9,10,11

16а2у4-6а2у2= -2а2у2( -8у2+3)= -2а2у2(3-8у2)