57^2-0,57^2:57,57=3249-0,3249:57,57=3249-0,0056435644=3248,994356435
F(x) =x² ;
f(x+5) =(x+5)².
по условию :
f(x) =f(x+5) ;
x² =(x+5)²;
x² =x² +10x +25;
10x = - 25 ;
x = -2,5.
ответ : -2,5.
2x+3x/4-3/4+3-1/4 = 0
2x + 3x/4 + 2 = 0
8x/4 + 3x/4 + 2 = 0
11x/4 = -2
11x = -8
X = -8/11
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