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प्रश्न
Find and correct the errors in the following mathematical statement. Substituting x = −3 in x2 + 5x gives (−3)2 + 5 (−3) = −9 − 15 = −24
उत्तर
For x = −3,
x2 + 5x = (−3)2 + 5(−3) = 9 − 15 = −6
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