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Savatey [412]
3 years ago
9

(2ab-7a-4) - (7ab-4) Hi plz help

Mathematics
1 answer:
choli [55]3 years ago
6 0

Step-by-step explanation:

(2ab-7a-4) - (7ab-4)

= 2ab - 7a - 4 - 7ab +4

(-) × (-) = (+)

(-) × (-) = (+)-(-4)= +4

then 4 will be cancelled

= 2ab - 7ab - 7a

= -5ab -7a

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