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प्रश्न
Find the square of x − 2y +1
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उत्तर
(x − 2y +1)2 = (x)2 + (−2y)2 + (1)2 + 2 × x × −2y + 2 × (−2y) ×1 + 2 × 1 × x
= x2 + 4y2 + 1 − 4xy − 4y + 2x
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संबंधित प्रश्न
Find the square of `"a"+1/(5"a")`
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 :
(415)2
Evaluate using the expansion of (a + b)2 or (a – b)2 :
(188)2
Write the following numbers in standard notation.
4000000 + 400 + 4
Write the following numbers in expanded from.
1,45,70,004
Represent given values in Abacus.
Write in standard form: 7 lakhs + 5 thousands + 4 tens + 3 ones
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.
4038
Write in expanded form:
74836
