Mathematics
In each of the following, find the value of 'a' :
(i) 4x2 + ax + 9 = (2x + 3)2
(ii) 4x2 + ax + 9 = (2x - 3)2
(iii) 9x2 + (7a - 5)x + 25 = (3x + 5)2
Related Questions
If 3a + 5b + 4c = 0, show that :
27a3 + 125b3 + 64c3 = 180abc.
The sum of two whole numbers is 7 and the sum of their cubes is 133, find the sum of their squares.
The difference between two positive numbers is 4 and the difference between their cubes is 316. Find :
(i) their product
(ii) the sum of their squares.