Advertisements
Advertisements
प्रश्न
Simplify by using formula :
(2x + 3y) (2x - 3y)
बेरीज
Advertisements
उत्तर
(2x + 3y) (2x - 3y)
= (2x)2 - (3y)2
= 4x2 - 9y2
(Using identity : (a + b) (a - b) = a2 - b2).
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
Factorise the following using appropriate identity:
`x^2 - y^2/100`
Factorise:
27x3 + y3 + z3 – 9xyz
Verify that `x^3+y^3+z^3-3xyz=1/2(x+y+z)[(x-y)^2+(y-z)^2+(z-x)^2]`
Evaluate following using identities:
(a - 0.1) (a + 0.1)
Find the value of 27x3 + 8y3, if 3x + 2y = 20 and xy = \[\frac{14}{9}\]
Find the following product:
(2ab − 3b − 2c) (4a2 + 9b2 +4c2 + 6 ab − 6 bc + 4ca)
If \[x - \frac{1}{x} = \frac{1}{2}\],then write the value of \[4 x^2 + \frac{4}{x^2}\]
Evaluate: `(2"x"-3/5)(2"x"+3/5)`
Find the squares of the following:
(2a + 3b - 4c)
If `"p" + (1)/"p" = 6`; find : `"p"^4 + (1)/"p"^4`
