(5x-2)^2-25x^2=40
25x^2-20x+4-25x^2=40
-20x+4=40
-20x=36
x = -1,8
(3x-4)^2-9x^2=120
9x^2-24x+16-9x^2=120
-24x+16=120
-24x=104
x= - 13/3
x= - 4,3333.....
ответ:
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(5x-2)^2-25x^2=40
25x^2-20x+4-25x^2=40
-20x+4=40
-20x=36
x = -1,8
(3x-4)^2-9x^2=120
9x^2-24x+16-9x^2=120
-24x+16=120
-24x=104
x= - 13/3
x= - 4,3333.....
ответ: