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Assoli18 [71]
2 years ago
10

When 8 is subtracted from the square of a number, the result is 7 times the number.

Mathematics
1 answer:
LuckyWell [14K]2 years ago
4 0

Answer:

8

Step-by-step explanation:

x^2 - 8 = 7x

x^2 - 7x - 8=0

(x - 8)(x + 1)=0

x - 8= 0   x + 1=0

x=8           x= -1

8 is the positive solution

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