Rozwiąż równanie:
(x-7)^2-4=(x+1)^2
x^2-14x+49-4=x^2+2x+1
-14x-2x=1-49+4
-16x=-44/:(-16)
x=2,75
x^2-14x+45=x^2+2x+1/-x^2
-14x+45=2x+1/-2x
-16x+45=1/-45
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x^2-14x+49-4=x^2+2x+1
-14x-2x=1-49+4
-16x=-44/:(-16)
x=2,75
x^2-14x+49-4=x^2+2x+1
x^2-14x+45=x^2+2x+1/-x^2
-14x+45=2x+1/-2x
-16x+45=1/-45
-16x=-44/:(-16)
x=2,75