24. Th
12. 4x² - 4x + 1=(_)2
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Step-by-step explanation:
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Step-by-step explanation:
4x²-4x+1
= 4x²-2x-2x+1
= 2x(2x-1)-1(2x-1)
=(2x-1)(2x-1)
= (2x-1)²
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