⑴-t-t-t⑵9ab-4ab+ab-7ab+5ab⑶-12x+6y-3+10x-2-y⑷5m-7n-8p+5n-9m-
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⑴-t-t-t
⑵9ab-4ab+ab-7ab+5ab
⑶-12x+6y-3+10x-2-y
⑷5m-7n-8p+5n-9m-p
⑵9ab-4ab+ab-7ab+5ab
⑶-12x+6y-3+10x-2-y
⑷5m-7n-8p+5n-9m-p
![⑴-t-t-t⑵9ab-4ab+ab-7ab+5ab⑶-12x+6y-3+10x-2-y⑷5m-7n-8p+5n-9m-](/uploads/image/z/2366557-61-7.jpg?t=%E2%91%B4-t-t-t%E2%91%B59ab-4ab%2Bab-7ab%2B5ab%E2%91%B6-12x%2B6y-3%2B10x-2-y%E2%91%B75m-7n-8p%2B5n-9m-)
⑴-t-t-t
=-3t
⑵9ab-4ab+ab-7ab+5ab
=4ab
⑶-12x+6y-3+10x-2-y
=-2x-5y-5
⑷5m-7n-8p+5n-9m-p
=-4m-2n-9p
=-3t
⑵9ab-4ab+ab-7ab+5ab
=4ab
⑶-12x+6y-3+10x-2-y
=-2x-5y-5
⑷5m-7n-8p+5n-9m-p
=-4m-2n-9p
⑴-t-t-t⑵9ab-4ab+ab-7ab+5ab⑶-12x+6y-3+10x-2-y⑷5m-7n-8p+5n-9m-
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