What is the value of (148+121)2+(148−121)214×148+121×121 ?
2
1
3
4
None of these
(a+b)2+(a−b)2a2+b2=2
148/x + 231/y = 527/xy , 231/x + 148/y = 610/xy
Solve simultaneous equations
148x+231y=910
231x+ 148y=610
find x and y