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Feliz [49]
3 years ago
8

Kelly is solving x^2 - 4x = 7 by completing the square. What number will Kelly add to both sides of the equation?

Mathematics
1 answer:
aleksandrvk [35]3 years ago
5 0

To complete the square, you add \frac{b}{2}^2 to both sides

so \frac{4}{2}^2

2^2

4

x^2 - 4x + 4=7 + 4

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Two pair of numbers are said to be relatively prime if there is no integer greater than 1, that divides them both.

Consider the given pair of the numbers to identify which pair is relatively prime.

1. Consider 42 and 77

7 is the number which divides 42 and 77 both. Therefore, they are not relatively prime.

2. Consider 34 and 55

Since, there is no number greater than 1, which divides both the numbers. So, they are relatively prime numbers.

3. Consider 45 and 102

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Answer:

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Step-by-step explanation:

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