x3 – x2y + 5xy2 + y3 ; -x3 – 9xy2 + y3 ; 3x2y + 9xy2
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Answer:
x3−x2y+5xy2+y3;3x2y4−x3
Step-by-step explanation:
x3−x2y+5xy2+y3;−x3−9xy2+y3(3)x2y+9xy2
x3−x2y+5xy2+y3;3x2y4−x3
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