Advertisements
Advertisements
प्रश्न
Expand: (10 + y)2
बेरीज
उत्तर
(10 + y)2
Using the identity (a + b)2 = a2 + 2ab + b2
= (10)2 + 2 × 10 × y + (y)2
= 100 + 20y + y2
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
Use a suitable identity to get the following products.
(6x − 7) (6x + 7)
(x2 + y2)(y2 + x2) = (x2 + y2)2
Show that (x + 2y)2 – (x – 2y)2 = 8xy
Simplify: (a + b)2 + (a – b)2
The difference of the squares of two consecutive numbers is their sum.
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
x2 + 12x + 36
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
a2x3 + 2abx2 + b2x
The area of a circle is given by the expression πx2 + 6πx + 9π. Find the radius of the circle.
Verify the following:
(7p – 13q)2 + 364pq = (7p + 13q)2
Factorise `x^2 + 1/x^2 + 2 - 3x - 3/x`.
