N
nhoc_vip_qk98


giải PT
a) (x+3)^4 + (x+5)^4 = 2
b) x^7 - 2x^6 + 3x^5 - x^4 - x^3 + 3x^2 +1 = 0
c) [x^2 + \frac{x}{x+1}] - 1 = 0
a) (x+3)^4 + (x+5)^4 = 2
b) x^7 - 2x^6 + 3x^5 - x^4 - x^3 + 3x^2 +1 = 0
c) [x^2 + \frac{x}{x+1}] - 1 = 0