Question 781798

two numbers that you can add to get {{{106}}} are {{{53}}} and {{{53}}} (when you factor {{{106}}} you get {{{2}}} and {{{53}}}), 

but, there is no number that you can multiply by {{{53}}} to get {{{480}}}; so, you need to complete the square this way:


*[invoke completing_the_square 1, -106, 480]