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Galina-37 [17]
3 years ago
8

Which expression is not equivalent to 2x^2+10x+12

Mathematics
1 answer:
chubhunter [2.5K]3 years ago
6 0

Answer:

1+1

Step-by-step explanation:

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Answer: The first number is 4

Explanation: Since the sum of the two numbers is ten, x + y = 10

Also, since the difference of the two numbers is two, then x - y = 2

Since x - y = 2, another way to write that is x = y + 2 and since x is exactly the same as y + 2, we can plug in "y + 2" in place of x in the first equation (x + y = 10) to get (y + 2) + y = 10. Then we solve this equation by combining like-terms.

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y = 4

Since x = y + 2, x = 4 + 2 or x = 6

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