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Maurinko [17]
3 years ago
14

If the equation 2x

Mathematics
1 answer:
mojhsa [17]3 years ago
4 0

Answer:

B.{5}

Step-by-step explanation:

2-8x-42=0

(÷2), we get,

1-4x-21=0

-4x-20=0

-4x=20

x=20÷(-4)

x=(-5)

since the question asks for a positive set, the answer is [x=5]

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