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Assoli18 [71]
3 years ago
11

Help finding the missing length

Mathematics
1 answer:
gulaghasi [49]3 years ago
3 0

Answer:

4x2-6x+6

Step-by-step explanation:

(9x2-2x) +(3x-5)+(m) =13x2-5x+1

(13x2-5x+1)-(9x2+x-5)=m

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