2x^2+3=3x^2-1
2x^2-3x^2=-1-3
-x^2=-4
x^2=4
x=2 и х=-2
ответ 2 и -2
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2x^2+3=3x^2-1
2x^2-3x^2=-1-3
-x^2=-4
x^2=4
x=2 и х=-2
ответ 2 и -2