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2^2x - 2^x+1 > 2^3
2x - (x+1) > 3
2x-x-1 > 3
x-1 > 3
x > 3+1
x > 4
2) x²-x-6 < 0
(x+2)(x-3) < 0
x+2 < 0 atau x-3 < 0
x < -2 x < 3
3) x²+5x-14 > 0
(x-2)(x+7) > 0
x-2 > 0 atau x+7 > 0
x > 2 x > -7