Advertisements
Advertisements
प्रश्न
Use an expansion formula to find the value.
(997)2
बेरीज
Advertisements
उत्तर
It is known that, (a + b)2 = a2 + 2ab + b2 and (a − b)2 = a2 − 2ab + b2
(997)2
= (1000 − 3)2
= (1000)2 − 2 × 1000 × 3 + (3)2
= 1000000 − 6000 + 9
= 994009
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
संबंधित प्रश्न
Use a suitable identity to get the following products.
(x + 3) (x + 3)
Find the following squares by suing the identities
(0.4p − 0.5q)2
Expand `("a"/2+"b"/3)^2`
Expand `("x"+1/2)^2`
Expand: `("p"/3 + "q"/4)^2`
Factorise the following expressions
x2 + 14x + 49
If a + b = 5 and a2 + b2 = 13, then ab = ?
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
9x2 + 24x + 16
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
2x3 + 24x2 + 72x
The area of a square is given by 4x2 + 12xy + 9y2. Find the side of the square.
