(x²-6)/2 = 5
x²-6 = 5*2
x²-6=10
x²=10+6
x²=16
x=+-4
Ответ: {-4; 4}.
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(x²-6)/2 = 5
x²-6 = 5*2
x²-6=10
x²=10+6
x²=16
x=+-4
Ответ: {-4; 4}.