add the algebroc expression
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Step-by-step explanation:
(b)-2x²y²+4/3x²y²+(-1/6x²y²)+1/3x²y²
=x²y²(-2+4/3-1/6+1/3)
=-1/2x²y²
(d)3/2x²y-1/2xy+3x²y+2xy+-1/2x²y+3/2xy
=x²y(3/2+3-1/2)+xy(-1/2+2+3/2)
=4x²y+3xy
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