Rozwiąz równania.
a) 12-2(x-1)²=4(x-2-(x-3) (2x-5)
b) (x-3) (x+3)-(2x-1)²=x(6-3x)-9
a) 12-2x^2+4x-2=4x-8-2x^2+5x+6x-15
-11x=-33
x=3
b) x^2-9-4x^2+4x-1=6x-3x^2-9
-2x=1
x=-1/2
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a) 12-2x^2+4x-2=4x-8-2x^2+5x+6x-15
-11x=-33
x=3
b) x^2-9-4x^2+4x-1=6x-3x^2-9
-2x=1
x=-1/2