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x²-(x+4)²=32
x²-x²-8x-16=32
-8x=32+16
-8x=48
x=-6
ta liczba to 6
x²-(x+4)²=32
x²-(x²+8x+16)=32
x²-x²-8x-16=32
-8x=32+16
-8x=48
x=-6
szukaną liczbą jest -6