Question

X+y+z=15 xy+yx+zx=75 To x y z ka ma'am gya karana hai

Answer 1

if we substitute x=y=z then x+x+x=15=> 3x=15=> x=5 . So x^2+x^2+x^2 =25+25+25=75. So x=5,y=5 and z=5.