Advertisements
Advertisements
प्रश्न
Simplify by using formula :
(x + y - 3) (x + y + 3)
योग
Advertisements
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
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
Use suitable identity to find the following product:
(x + 8) (x – 10)
Without actually calculating the cubes, find the value of the following:
(–12)3 + (7)3 + (5)3
If 9x2 + 25y2 = 181 and xy = −6, find the value of 3x + 5y
Write in the expand form: `(2x - y + z)^2`
If \[x - \frac{1}{x} = 5\], find the value of \[x^3 - \frac{1}{x^3}\]
If \[\frac{a}{b} + \frac{b}{a} = - 1\] then a3 − b3 =
Evaluate: `(2"a"+1/"2a")(2"a"-1/"2a")`
If `"a" - 1/"a" = 10;` find `"a" + 1/"a"`
If `"a"^2 + (1)/"a"^2 = 14`; find the value of `"a" + (1)/"a"`
Simplify:
(2x + y)(4x2 - 2xy + y2)
