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Leesa549 Leesa549
  • 15-07-2015
  • Mathematics
Answered

Determine if a2 + 4a + 4 is a perfect square trinomial and factor.

A(a 4)2
B(a +2)2
C(a 2)2
DNot a perfect square trinomial.

Verified Answer :

Benjamin16
Benjamin16 Benjamin16
  • 18-07-2015

\(1^{o} \\ \\ (a+b)^{2}=a^{2}+2ab+b^{2} \\ \\ a^{2}+4a+4=(a+2)^{2} \\ \\ 2^{o} \\ \\ a^{2}+4a+4=a^{2}+2a+2a+4=a(a+2)+2(a+2)= \\ \\ =(a+2)(a+2)=(a+2)^{2}\)

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