(2x-1)²-(x-1)² pls solve this problem
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Answer:
3x² - 2x
Step-by-step explanation:
Since, (a - b)² = a² + b² - 2ab
(2x-1)² = (2x)² + (1)² - 2(2x)(1)
= 4x² + 1 - 4x
(x-1)² = (x)² + (1)² - 2(x)(1)
= x² + 1 - 2x
(2x-1)²-(x-1)² = 4x² + 1 - 4x -(x² + 1 - 2x)
= 4x² + 1 - 4x - x² - 1 + 2x
= 3x² - 2x
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