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5 votes
Solve by factoring

0 = x² - 4x + 4

User Annk
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1 Answer

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You can use the formula (a-b)²=a²-2ab+b²
x² - 4x +4 = 0
x² - 2(x)(2) + 2² = 0 (a=x, b=2)
(x-2)² = 0
User Miguel Stevens
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