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प्रश्न
Expand : (2a + b)2
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उत्तर
(2a + b)2 = (2a)2 + (b)2 + 2 × 2a × b ......[(a+b)2 = a2 + b2 + 2ab]
= 4a2 + b2 + 4ab
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संबंधित प्रश्न
Evaluate using the expansion of (a + b)2 or (a – b)2 :
(208)2
Evaluate using the expansion of (a + b)2 or (a – b)2 :
(92)2
Find the square of 607
Write the place value of the underlined digit.
50,000
The expanded form of the number is given. Write the number.
20,00,000 + 3,00,000 + 60,000 + 9000 + 500 + 10 + 7
Represent given values in Abacus.
3 Ten crores, 7 crores, 6 ten lakhs, 7 lakhs, 4 tens and 7 ones.
Represent given values in Abacus.
Write the number name of the following numbers represented in the Abacus
Find the face value and place value of the digits coloured in the given numbers.
1379
Find the face value and place value of the digits coloured in the given numbers.
5136
Write in expanded form:
74836
