20 - [5xy +3{x2 - (xy - y) - (x - y)}]
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Answered by
21
Step-by-step explanation:
20 -5xy -3 {x2-(xy -y ) - (x-y)}
20 -5xy -3 {2x -xy +y - x+y }
20 -5xy-6x+3xy-3y +3x-3y
20 -2xy -3x-6y
Answered by
4
Answer:
Step-by-step explanation:
20 -5xy -3 {x2-(xy -y ) - (x-y)}
20 -5xy -3 {2x -xy +y - x+y }
20 -5xy-6x+3xy-3y +3x-3y
20 -2xy -3x-6y
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