Advertisements
Advertisements
प्रश्न
The area of a square is 9x2 + 24xy + 16y2. Find the side of the square.
Advertisements
उत्तर
We have,
Area of a square = 9x2 + 24xy + 16y2
= (3x)2 + 2 × 3x × 4y + (4y)2 ...[∵ a2 + 2ab + b2 = (a + b)2]
= (3x + 4y)2
∴ The side of the square = 3x + 4y ...[∵ Area of square = (side)2]
APPEARS IN
संबंधित प्रश्न
Use a suitable identity to get the following products.
`(3a - 1/2)(3a - 1/2)`
Find the following squares by suing the identities.
`(2/3 m + 3/4 n)^2`
Using identities, evaluate (5.2)2
Using a2 − b2 = (a + b) (a − b), find 1532 − 1472
Use an expansion formula to find the value.
(97)2
Use a formula to multiply of (2t – 5)(2t + 5)
Expand: (51)2
Simplify: (a + b)2 – 4ab
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
a2x2 + 2abx + b2
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
`9x^2 + 2xy + y^2/9`
