Question

(3xy)³*(-2/3x²y)+3x(x²y²)²-(-x的四次方-

Answer 1

(3xy)³*(-2/3x²y)+3x(x²y²)²-(-x的四次方-3)*xy的四次方其中x=-1y y=2

=27x³y³×(-2x²y/3)+3xx^4y^4+x^5y^4+3xy^4

=-18x^5y^4+3x^5y^4+x^5y^4+3xy^4

=-14x^5y^4+3xy^4

=-14×(-1)×16+3×(-1)×16

=11×16

=176;

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