Question

Show that: (4mn + 3n )2 – ( 4mn -3n)2 = 48mn2 ​

Answer 1

$To\:prove:\\\\(4mn+ 3n)^2-(4mn-3n)^2=48mn^2\\=>16m^2n^2+24mn^2+9n^2-(16m^2n^2-24mn^2+9n^2)=48mn^2\\=> 16m^2n^2+24mn^2 +9n^2-16m^2n^2 +24mn^2-9n^2=48mn^2\\=> 48mn^2=48mn^2\\LHS=RHS\\Hence\:proved\\\\pls \:question\:thik\:se\:likhte\:jao.........\\\:smjhne\:me\:bohot\:problem\:hoti\:hai!!!$