4x²y²/(-1/2x²y)4x^4 y²/(-1/2x²y)

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4x²y²/(-1/2x²y)4x^4 y²/(-1/2x²y)
4x²y²/(-1/2x²y)
4x^4 y²/(-1/2x²y)

4x²y²/(-1/2x²y)4x^4 y²/(-1/2x²y)
4x²y²/(-1/2x²y)
=-(4*2)*x^(2-2)*y^(2-1)
=-8x^0*y
=-8y

4x²y²/(-1/2x²y)
=[4/(-1/2)] x(²-²)y(²-1)
=-8y

4x²y²/(-1/2x²y)
=-8y

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