rozwiąż równanie:
(x-3)^2-(x-4)^2=8
(x^2-6x+9)-(x^2-8x+16)=8
x^2-6x+9-x^2+8x-16=8
2x=8+16-9
2x=15 / :2
x=7,5
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(x^2-6x+9)-(x^2-8x+16)=8
x^2-6x+9-x^2+8x-16=8
2x=8+16-9
2x=15 / :2
x=7,5