Ответ:
2
Объяснение:
2(х-2) (х+2) - (х-1)²=х²-5
2(x²-4)-(x-1)²-x²+5=0
2x²-8-x²+2x-1-x²+5=0
2x-4=0
2x=4
x=2
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Verified answer
Ответ:
2
Объяснение:
2(х-2) (х+2) - (х-1)²=х²-5
2(x²-4)-(x-1)²-x²+5=0
2x²-8-x²+2x-1-x²+5=0
2x-4=0
2x=4
x=2