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Studentka2010 [4]
3 years ago
9

The difference of the squares of two consecutive even integers is 68. What are these numbers?

Mathematics
2 answers:
NARA [144]3 years ago
8 0

Answer:

16 and 18

Step-by-step explanation:

(n + 2)² - n² = 68

Expand

(n² + 4n + 4) - n² = 68

4n + 4 = 68

Subtract 4 from both sides

4n = 64

Divide both sides by 4

n = 16

n + 2 = 18

valentinak56 [21]3 years ago
4 0

Answer:

x = 5

Step-by-step explanation:

(2x+2)² - (2x)² = 44

4x^2 + 8x + 4 -  4x^2 = 44

8x + 4 = 44

8x = 44 - 4

8x = 40

x = 40/8

x = 5

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