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Sagot :
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
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
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