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KonstantinChe [14]
2 years ago
11

When 21 is subtracted from the square of a number, the result is 4 times the number.

Mathematics
1 answer:
bixtya [17]2 years ago
8 0

Answer:

7

Step-by-step explanation:

7^2 =49

49 -21 =28

28÷7 = 4

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