Advertisements
Advertisements
प्रश्न
Expand : `( 3a + 2/b )( 2a - 3/b )`
योग
Advertisements
उत्तर
`( 3a + 2/b )( 2a - 3/b) = (3a)(2a) + ( 2/b )(2a) - (3/b)(3a) - (2/b)(3/b)`
= `6a^2 + ( 4/b - 9/b )a - 6/b^2`
= `6a^2 + (-5/b)a - 6/b^2`
= `6a^2 - [5a]/b - 6/b^2`
shaalaa.com
Expansion of Formula
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
Expand : ( x + y - z )2
Expand : ( 5a - 3b + c )2
Expand : `( x - 1/x + 5)^2`
If a + b + c = 12 and a2 + b2 + c2 = 50; find ab + bc + ca.
If x+ y - z = 4 and x2 + y2 + z2 = 30, then find the value of xy - yz - zx.
In the expansion of (2x2 - 8) (x - 4)2; find the value of coefficient of x3.
If x > 0 and `x^2 + 1/[9x^2] = 25/36, "Find" x^3 + 1/[27x^3]`
If x2 + `x^(1/2)`= 7 and x ≠ 0; find the value of:
7x3 + 8x − `7/x^3 - 8/x`
If 3a + 5b + 4c = 0, show that : 27a3 + 125b3 + 64c3 = 180 abc
If x = `1/[ 5 - x ] "and x ≠ 5 find "x^3 + 1/x^3`
