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
Evaluate the following product without multiplying directly:
95 × 96
Expand the following, using suitable identity:
(3a – 7b – c)2
Simplify the following products:
`(2x^4 - 4x^2 + 1)(2x^4 - 4x^2 - 1)`
Simplify the following expressions:
`(x^2 - x + 1)^2 - (x^2 + x + 1)^2`
If 2x+3y = 13 and xy = 6, find the value of 8x3 + 27y3
Simplify of the following:
(x+3)3 + (x−3)3
If a + b = 7 and ab = 10; find a - b.
If m - n = 0.9 and mn = 0.36, find:
m + n
If p2 + q2 + r2 = 82 and pq + qr + pr = 18; find p + q + r.
Simplify:
(2x - 4y + 7)(2x + 4y + 7)
