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Verified answer
|x + 7| < |x - 9|(x + 7)² < (x - 9)²
x² + 14x + 49 < x² - 18x + 81
32x < 32
x < 1
HP : {x| x < 1}
|x+7|<|x-9|
= (x+7)²<(x-9)²
= x²+14x+49<x²-18x+81
= 32x<32
HP={x|x<1}
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