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13-03-2018
Mathematics

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What is the missing constant term in the perfect square that starts with x^2−4x

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13-03-2018

x² - 4x = x² - 4x + ([tex] \frac{4}{2} [/tex])² - ([tex] \frac{4}{2} [/tex])²
x² - 4x = x² - 4x + (2)² - (2)²

2² = 4

The constant term that is missing is 4

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