73.9k views
3 votes
Piz look at the pic



piz \: help \:me \: thx


Piz look at the pic piz \: help \:me \: thx ​-example-1

1 Answer

4 votes

Answer:

-12a²+9a-5

Explanation:

-7a²+3a-9 - (5a²-6a-4)=

-7a²+3a-9-5a²+6a+4=

-12a²+9a-5

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