Advertisements
Advertisements
प्रश्न
Find the square of 2a + b.
योग
Advertisements
उत्तर
We Know that
(a + b)2 = a2 + b2 + 2ab
(2a + b)2 = 2a2 + b2 + 2 × 2a × b
= 4a2 + b2 + 4ab
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
Simplify the following: 175 x 175 x 2 x 175 x 25 x 25 x 25
Simplify (a + b + c)2 + (a - b + c)2 + (a + b - c)2
If a + b = 10 and ab = 21, find the value of a3 + b3
If \[x^4 + \frac{1}{x^4} = 119\] , find the value of \[x^3 - \frac{1}{x^3}\]
If a + b = 8 and ab = 6, find the value of a3 + b3
\[\frac{( a^2 - b^2 )^3 + ( b^2 - c^2 )^3 + ( c^2 - a^2 )^3}{(a - b )^3 + (b - c )^3 + (c - a )^3} =\]
Find the square of : 3a + 7b
Expand the following:
(2x - 5) (2x + 5) (2x- 3)
Evaluate the following without multiplying:
(1005)2
If `x + (1)/x = 3`; find `x^4 + (1)/x^4`
