Advertisements
Advertisements
प्रश्न
Evaluate: (9 − y) (7 + y)
बेरीज
Advertisements
उत्तर
(9 − y) (7 + y) = 9(7 + y) − y (7 + y)
= 63 + 9y − 7y − y2
= 63 + 2y − y2
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
Use suitable identity to find the following product:
(3x + 4) (3x – 5)
If a + b + c = 9 and ab + bc + ca = 23, find the value of a2 + b2 + c2.
Evaluate of the following:
`(10.4)^3`
Find the following product:
\[\left( \frac{3}{x} - \frac{5}{y} \right) \left( \frac{9}{x^2} + \frac{25}{y^2} + \frac{15}{xy} \right)\]
If a + b = 8 and ab = 6, find the value of a3 + b3
If \[\frac{a}{b} + \frac{b}{a} = 1\] then a3 + b3 =
Evaluate: (4 − ab) (8 + ab)
Evaluate the following :
1.81 x 1.81 - 1.81 x 2.19 + 2.19 x 2.19
If `49x^2 - b = (7x + 1/2)(7x - 1/2)`, then the value of b is ______.
Factorise the following:
4x2 + 20x + 25
