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प्रश्न
Find the value of the following expression, when x = −1:
2x2 − x − 2
बेरीज
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उत्तर
2x2 - x - 2
= 2 (-1) × (-1) - (-1) - 2
= 2 + 1 - 2
= 1
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पाठ 10: Algebraic Expressions - EXERCISE 10.2 [पृष्ठ १६८]
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