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Byju's Answer
Standard VIII
Mathematics
Properties of Multiplication of Integers
Use a formula...
Question
Use a formula to find the value of the following:
(1) (296)
2
(2) (205)
2
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Solution
(1) (296)
2
= (300 − 4)
2
, which can be solved as:
296
2
= (300 − 4)
2
= 90000 + 16 − 2400
= 87616
(2) (205)
2
, which can be solved as:
205
2
= 200
2
+ 5
2
+2 × (200) × (5)
= 40000 + 25 + 2000
= 42025
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