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(x+2)^2=
Guest Feb 23, 2012
 #1
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5x+2=10
mp1112  Feb 23, 2012
 #2
avatar+3077 
0
Guest:

(x+2)^2=



(x+2)^2=(x+2)*(x+2)= x*x + 2*x + 2*x + 2*2 = x^2+4x+4
admin  Feb 23, 2012

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