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21-03-2017
Mathematics

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state the largest solution of (x + 3)2 - 4 = 0.

Respuesta :

ghanami ghanami

21-03-2017

Hello :
(x+3)² -2² = 0
by identite : a²-b² =(a-b)(a+b)
(x+3-2)(x+3+2)= 0
(x+1)(x+5)=0
x+1=0 or x+5=0
x=-1 or x=-5
the largest solution is : - 1

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