(-4)^4÷(-4)^3 (-3A^3)^2÷A^4 (A-B)^4÷(B-A)^2
问题描述:
(-4)^4÷(-4)^3 (-3A^3)^2÷A^4 (A-B)^4÷(B-A)^2
答
(-X)^13÷X^11
=-x^(13-11)
=-x²
(-4)^4÷(-4)^3
=(-4)^(4-3)
=-4
(-3A^3)^2÷A^4
=9A^6÷A^4
=9A²
(A-B)^4÷(B-A)^2
=(A-B)^4÷(A-B)²
=(A-B)²