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Perímetro = 4L
P = 4 (3x²+4x-2)
P = 12x²+16x-8
Área = L²
A = (3x²+4x-2)²
A = (3x²+4x-2)*(3x²+4x-2)
A = 9x⁴+12x³-6x²+12x³+16x²-8x-6x²-8x+4
A = 9x⁴+24x³+4x²-16x+4