A) (a-b) • (a+b)B) (5xy³-8x³y²) • (5xy³+8x³y²)C) ([a+b]-y) • ([a+b]+y)D) ([x+b]-[b+2]) • ([x+b]+[b+2])
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A) (a-b) • (a+b)
B) (5xy³-8x³y²) • (5xy³+8x³y²)
C) ([a+b]-y) • ([a+b]+y)
D) ([x+b]-[b+2]) • ([x+b]+[b+2])