1 < (3x ^ 2 7x + 8)/(x ^ 2 + 1) <= 2

请输入您的数学问题…… 1 < (3x ^ 2 - 7x + 8)/(x ^ 2 + 1) <= 2

问题

1 < (3 x^{2} - 7 x + 8) / (x^{2} + 1) <= 2

Verification required

Please type the verification code shown