Помогите решить примеры срочно : 1) x^4-(9a^2+4)x^2+36a^2=0
2) (x-3)^4-13 (x+3)^2+36=0
3) (2x-1)^4-(2x-1)^2-12=0
4) (x-1)^4-x^2+2x-73=0
5) (x-2)^4+2x^2+8x-16=0
2) (x-3)^4-13 (x+3)^2+36=0
3) (2x-1)^4-(2x-1)^2-12=0
4) (x-1)^4-x^2+2x-73=0
5) (x-2)^4+2x^2+8x-16=0
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