15x^3+4x^2+14x+12
Multiply 3x by every value in the second bracket. Then multiply 2 by every value in the second bracket. Add like terms. (Only answers with the same square are like terms.)
You can subtract 9 from the 713 value and trace until you get a multiple of 7 or vice versa.
It could be one of :
80 figilbuttons and 7 rybirens
or
14 rybirens and 73 figilbuttons
936936 is the perimeter and perimeter of a square is 4 times the length of one of the sides. therefore, you divide 936936 by 4 and get your answer, which is 234234.