x∧6+9x∧4+20x∧2+4＜0
    9
    9
    sqrt(8-x)>x*x
    x>ex
    x>x-1
    x>x+1
    1-x>x
    x*x*x>2
    x*x>1
    x-2/3-x >0
    12*1.1^x-1>12+2(x-1)
     ( 0.75 ) ^ x < ( 10 ^ ( -4 ) ) × 0.25
     (0.75）^x <[10^(-4)]/5×0.25
     (0.75）^x <[10^(-4)]/5
    (0.75）^x <0.00002×0.25
    (0.75）^x<0.00002
    3^x>5x
    ( 0.65 ) ^ x <10 ^ ( -4 ) ÷ 4.4
    （0.65）^x <10^(-4)×0.35÷4.4

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