Respuesta:
a. 15x³+8x²-24x+8
b. -18x³-9x²y+30x²+15xy
c. 4x²+12xy+x+3y
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Verified answer
Respuesta:
a. 15x³+8x²-24x+8
b. -18x³-9x²y+30x²+15xy
c. 4x²+12xy+x+3y