Advertisements
Advertisements
प्रश्न
Expand : (3x + 5y + 2z) (3x - 5y + 2z)
बेरीज
Advertisements
उत्तर
(3x + 5y + 2z) (3x - 5y + 2z)
= {(3x + 2z) + (5y)} {(3x + 2z) - (5y)}
= (3x + 2z)2 - (5y)2
{since (a + b) (a - b) = a2 - b2}
= 9x2 + 4z2 + 2 × 3x × 2z - 25y2
= 9x2 + 4z2 + 12xz - 25y2
= 9x2 + 4z2 - 25y2 + 12xz
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
Expand.
`((5x)/y + y/(5x))^3`
Find the cube of : `2a + 1/(2a)` ( a ≠ 0 )
Use property to evaluate:
133 + (–8)3 + (–5)3
Find the cube of: 4x + 7y
Find the cube of: `3"a" + (1)/(3"a")`
Find the cube of: `"a" - (1)/"a" + "b"`
If `3x - (1)/(3x) = 9`; find the value of `27x^3 - (1)/(27x^3)`.
If p - q = -1 and pq = -12, find p3 - q3
If m - n = -2 and m3 - n3 = -26, find mn.
Expand (52)3
