Respuesta:
a) 16x²- 30xy+ 25y²
c) 4x²+ 12xy+9y²
b) 9x²+12xy+ 4xy²
d) 49z²- 188zv-144v²
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Verified answer
Respuesta:
a) 16x²- 30xy+ 25y²
c) 4x²+ 12xy+9y²
b) 9x²+12xy+ 4xy²
d) 49z²- 188zv-144v²