X^(m-2n+3k)
=X^m/X^2n*X^3k
=X^m/(X^n)^2*(X^k)^3
=9/6^2*2^3
=9/36*8
=72/36
=2
注意:"^"是次方,后面的是指数.
X^(m-2n+3k)
=X^m/X^2n*X^3k
=X^m/(X^n)^2*(X^k)^3
=9/6^2*2^3
=9/36*8
=72/36
=2
X^(m-2n+3k)=X^m÷(X^n) ^2×(X^k) ^3=9÷6^2×2^3=2
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