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antiseptic1488 [7]
1 year ago
13

Identify the step where an error first occurred. Step 1(-2n+ n° - 7n") + (-n" +4% +12n) Step 2-2n+ n- 7n3 - n1 +4n3 + 12n2 Step

32n" - 3n3 + 14n2 Step 1 Step 2 Step 3 No error

Mathematics
1 answer:
Ghella [55]1 year ago
6 0

EXPLANATION

Step 1 ---> Grouping in terms

Step 2 is well done ---> Removing the parentheses

Step 3 has an error ---> It's -3n^2

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Answer:

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GalinKa [24]

The image of the triangle is missing, so i have attached it.

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