Question

(xy + 3) (xy - 3)- answer
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Answer 1

Answer:

(x+y)³+(x-y) ³=(2x) (x²+3y²)

Step-by-step explanation:

(x+y) ³+(x-y) ³

=(x³+3xy²+3x²y+y³)+(x³+3xy²-3x²y-y³)

=(2x)(x²+3y²)