Advertisements
Advertisements
प्रश्न
Expand.
`(1/y + 4)(1/y - 9)`
बेरीज
Advertisements
उत्तर
`(1/y + 4)(1/y - 9)`
= `(1/y)^2 + {4 + (-9)}1/y + (4) xx (-9)`
= `1/y^2 + (-5) xx 1/y -36`
= `1/y^2 -5/y - 36`
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
संबंधित प्रश्न
Expand.
(a + 2) (a − 1)
Expand.
(m − 4)(m + 6)
Expand.
(13 + x) (13 − x)
Expand.
(9x − 5t) (9x + 3t)
Expand.
`(x + 1/x)(x - 1/x)`
Use the Identity (x + a) (x + b) = x2 + (a + b)x + ab to find the following:
95 × 103
Expand: (y + 4)(y - 3)
Using the identity (x + a)(x + b) = x2 + x(a + b) + ab, find the following product
(6a + 9)(6a – 5)
Using the identity (x + a)(x + b) = x2 + x(a + b) + ab, find the following product
(4x + 3y)(4x + 5y)
The following expression is the area of a rectangle. Find the possible length and breadth of the rectangle.
x2 + 19x – 20
