X^4 4x^2 + 9a^2 x^2 + 2x 3a

请输入您的数学问题…… x^4 - 4x^2 + 9a^2 x^2 + 2x - 3a

问题

x^{4} - 4 x^{2} + 9 a^{2} x^{2} + 2 x - 3 a

Verification required

Please type the verification code shown