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प्रश्न
If x = 2 and y = − 4, evaluate:
(5y)2
बेरीज
उत्तर
(5y)2
= 5 × y × 5 × y
= 5 × (− 4) × 5 × (− 4)
= (− 20) × (− 20)
= 400
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