November 2018 1 119 Report
Reescribe las expresiones siguientes, usa las identidades notables:
A) 9+6x+x^2=(...+...)^2
B) y^2-2yx+x^2=(...-...)^2
C) ...^2-4...+..^2=(2a-b)^2
D) 9y^2+6yx+x^2=(...+..)^2
E) 9-x^2=( ) (3...x)
F) 9y^2-4x^2=
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