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igomit [66]
3 years ago
10

What is the missing polynomial?

Mathematics
2 answers:
Studentka2010 [4]3 years ago
8 0

Answer:C

Step-by-step explanation:

german3 years ago
7 0

Answer:

C. 40-4x-12x^2

Step-by-step explanation:

very simple

? – (20 – 4x – 5x2) = 20 – 7x2, so ?  = 20 – 7x2 + (20 – 4x – 5x2)

?  = 20 – 7x2 + (20 – 4x – 5x2)=20-7x²+20-4x-5x²=40-12x²-4x

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