add the following 3x²-5y+6;4x²-4y-6
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0
Step-by-step explanation:
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Answered by
2
Answer:
7x²-9y
Step-by-step explanation:
- 3x²-5y+6
+4x²-4y-6
=7x²-9y+0 (here -6&+6 got cancel out itself)
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