1) (a + 6)(a -9) > (a + 11)(a - 14)
a² - 9a + 6a - 54 > a² - 14a + 11a - 154
a² - 3a - 54 > a² - 3a - 154
2) (a - 10)² - 12 < (a - 7)(a - 13)
a² - 20a + 100 - 12 < a² - 13a - 7a + 91
a² - 20a + 88 < a² - 20a + 91
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1) (a + 6)(a -9) > (a + 11)(a - 14)
a² - 9a + 6a - 54 > a² - 14a + 11a - 154
a² - 3a - 54 > a² - 3a - 154
2) (a - 10)² - 12 < (a - 7)(a - 13)
a² - 20a + 100 - 12 < a² - 13a - 7a + 91
a² - 20a + 88 < a² - 20a + 91