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Givena^2+4a-77Find the factor using FOIL multiplication or is this trinomial is prime?

Givena^2+4a-77Find the factor using FOIL multiplication or is this trinomial is prime?
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Givena^2+4a-77Find the factor using FOIL multiplication or is this trinomial is prime?

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User Teron
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1 Answer

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\begin{gathered} a^2+4a-77 \\ a^2+11a-7a-77 \\ a(a+11)-7(a+11) \\ (a-7)(a+11) \end{gathered}

I have been able to factor the trinomial and the final result is

(a - 7 ) ( a + 11 )

answered
User Brave
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8.7k points
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