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Rewrite the expansion of (5x - 7y) using sigma notation Select one: 20 (5x) 20-(7 y)' O b. 5 20 21=0 (20) (5x) 20-1(-7y)' O

Rewrite the expansion of (5x - 7y) using sigma notation Select one: 20 (5x) 20-"(7 y)' O b. 5 20 21=0 (20) (5x) 20-1(-7y)' O C. 5 20 Creo (20 ) (5 x ) ' ( - 7y) 20-r Od. El, (12) (5x) 19- (-7y)"

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