chancek99 chancek99

27-07-2018
Mathematics

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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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