7x^3y^3-6xy^4+5x^3y-1 + -7x^3y^3-xy^4- x^3y+5 15/08/2021 Bởi Parker 7x^3y^3-6xy^4+5x^3y-1 + -7x^3y^3-xy^4- x^3y+5
7x^3y^3-6xy^4+5x^3y-1 + -7x^3y^3-xy^4 – x^3y +5 _____________________________ -7xy^4 +4x^3y-4 Bình luận
7x^3y^3-6xy^4+5x^3y-1
+
-7x^3y^3-xy^4 – x^3y +5
_____________________________
-7xy^4 +4x^3y-4
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