add 2x + 3y +6z-9y-12z2
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2
Answer:
2x-6y+3y-12z2
Step-by-step explanation:
2x-6y+3y-12z2
Answered by
0
Step-by-step explanation:
=2x+3y+6z-9y-12z^2
=2x-3y+6z-12z^2
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