Question 241788
-16x^2+88x+3=124 
-16x^2+88x+3-124=0
16x^2-88x+121=0 here you have 16=4^2 & 121=11^2 & 2*4*11=88.
This identifies a single solution.
(4x-11)^2=0
4x-11=0
x=11
x=11/4 ans.
Proof:
16(11/4)^2-88(11/4)+121=0
16*121/16-968/4+121=0
121-242+121=0
121-242+121=0
242-242=0
0=0