Advertisements
Advertisements
प्रश्न
Simplify by using formula :
(x + y - 3) (x + y + 3)
बेरीज
उत्तर
(x + y - 3) (x + y + 3)
= (x + y)2 - (3)2
= x2 + y2 + 2xy - 9
(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:
9x2 + 6xy + y2
Find the cube of the following binomials expression :
\[\frac{3}{x} - \frac{2}{x^2}\]
If x + \[\frac{1}{x}\] = then find the value of \[x^2 + \frac{1}{x^2}\].
The product (x2−1) (x4 + x2 + 1) is equal to
Simplify by using formula :
(2x + 3y) (2x - 3y)
Evaluate the following without multiplying:
(95)2
Evaluate, using (a + b)(a - b)= a2 - b2.
399 x 401
If m - n = 0.9 and mn = 0.36, find:
m + n
Which one of the following is a polynomial?
Without actually calculating the cubes, find the value of:
`(1/2)^3 + (1/3)^3 - (5/6)^3`
