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प्रश्न
Find the following squares by suing the identities.
(2xy + 5y)2
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उत्तर
(2xy + 5y)2 = (2xy)2 + 2(2xy) (5y) + (5y)2
[(a + b)2 = a2 + 2ab + b2]
= 4x2y2 + 20xy2 + 25y2
संबंधित प्रश्न
Use a suitable identity to get the following products.
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Use the formula to find the value.
97 × 103
Use the formula to find the value.
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Evaluate the following, using suitable identity
512
The sum of areas of two squares with sides 4a and 4b is ______.
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
x2 + 6x + 9
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
x2 + 12x + 36
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Calculate the area of figure.
