chancek99
chancek99
27-07-2018
Mathematics
contestada
factor completely 2a^2-7a-14a+49
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choixongdong
choixongdong
27-07-2018
2a^2-7a-14a+49
= (2a^2 - 7a) - (14a - 49)
= a(2a + 7) - 7(2a + 7)
= (2a + 7)(a - 7)
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