Answers

2016-06-28T15:17:47+08:00
1. (5a² - 6a +3)(2a+5)
    10a³ +25a² - 12a² - 30a +6a +15
    10a³ +13a² -24a +15

2. (3x+2)(5x-4)
    15x² -12x +10x -8
    15x² -2x -8
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