Advertisements
Advertisements
प्रश्न
Find the value of 'a': 9x2 + (7a - 5)x + 25 = (3x + 5)2
योग
उत्तर
9x2 + (7a - 5)x + 25 = (3x + 5)2
Comparing coefficients of x terms, we get
(7a - 5)x = 30x
7a - 5 = 30
7a = 35
a = 5
shaalaa.com
Expansion of Formula
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
Expand : ( x + 8 )( x - 10 )
Expand : `( 2x - 1/x )( 3x + 2/x )`
Expand : ( 5a - 3b + c )2
Expand : ( 5x - 3y - 2 )2
If a2 + b2 + c2 = 50 and ab + bc + ca = 47, find a + b + c.
In the expansion of (2x2 - 8) (x - 4)2; find the value of constant term.
If a2 + b2 = 34 and ab = 12; find : 3(a + b)2 + 5(a - b)2
Find the value of 'a': 4x2 + ax + 9 = (2x + 3)2
The sum of two numbers is 7 and the sum of their cubes is 133, find the sum of their square.
If x = `1/( x - 5 ) "and x ≠ 5. Find" : x^2 - 1/x^2`
