Calcule as raízes de cada equação:
A) (x+2)^2 + 4x = 4
B) X•(x+2) = 4x
C) 3•(x-2)^2=12
D) 2x^2 - 3/4 = x^2 + 1/4.
A) (x+2)^2 + 4x = 4
B) X•(x+2) = 4x
C) 3•(x-2)^2=12
D) 2x^2 - 3/4 = x^2 + 1/4.
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B= 3x=4x....x=4x-3x=1x...x=1
C= x*