1)х=16\5
2)x=4
Объяснение:
1) (х-4)^2=x
(x-3)= x^2 -8x+16=x^2-3x
x^2-8x +16=x^2 -3x
-8x+16 = -3x
-8x= +3x= -16
-5x = -16
x= 16\5
2)x^2-x-(x^2-10x +25)=11
x^2-x-x^2+10x -25 =11
-x+ 10x -25 =11
9x -25=11
9x=11+25
9x=36
x=4
1)х=16\5
2)x=4
Объяснение:
1) (х-4)^2=x
(x-3)= x^2 -8x+16=x^2-3x
x^2-8x +16=x^2 -3x
-8x+16 = -3x
-8x= +3x= -16
-5x = -16
x= 16\5
2)x^2-x-(x^2-10x +25)=11
x^2-x-x^2+10x -25 =11
-x+ 10x -25 =11
9x -25=11
9x=11+25
9x=36
x=4