1、log2 (x^12+3x^10+5x^8+3x^6+1) <1+log2 (x^4+1)
log2 (x^12+3x^10+5x^8+3x^6+1) <log2 (2x^4+2)
x^12+3x^10+5x^8+3x^6+1 <2x^4+2
x^12+3x^10+5x^8+3x^6 - 2x^4 -1 < 0
(x^8 + 2x^6 + 4x^4 + ...
1、log2 (x^12+3x^10+5x^8+3x^6+1) <1+log2 (x^4+1)
log2 (x^12+3x^10+5x^8+3x^6+1) <log2 (2x^4+2)
x^12+3x^10+5x^8+3x^6+1 <2x^4+2
x^12+3x^10+5x^8+3x^6 - 2x^4 -1 < 0
(x^8 + 2x^6 + 4x^4 + ...