Question

Find 'a' (i) 4x2+ax+9=(2x+3)2 (ii)4x2+ax+9=(2x-3)2

Answer 1

4x2+ax+9=2×2x+2×3
4x2+ax+9=4x+6
4x2+ax+9-4x+6=0
4x2+ax+15-4x=0
4x2+3x+15=a

Answer 2

Answer is 12

Hope the solution will help