n² + x + 0.04 = n² + x + 0.2² = n² + 2*n*0.2 + 0.2² = n² + 0.4n + 0.4 = (n+0.2)²
n² + x + 0.04 = n² + x + 0.2² = n² + 2*n*(-0.2) + 0.2² = n² - 0.4n + 0.4 = (n-0.2)²
Ответ D
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n² + x + 0.04 = n² + x + 0.2² = n² + 2*n*0.2 + 0.2² = n² + 0.4n + 0.4 = (n+0.2)²
n² + x + 0.04 = n² + x + 0.2² = n² + 2*n*(-0.2) + 0.2² = n² - 0.4n + 0.4 = (n-0.2)²
Ответ D