5x12x123 so is it 123 and 1230 1233

In the figure below, ∠dec ≅ ∠dce, ∠b ≅ ∠f, and segment df is congruent to segment bd. point c is the point of intersection between segment ag and segment bd, while point e is the point of intersection between segment ag and segment df. the figure shows a polygon comprised of three triangles, abc, dec, and gfe. prove δabc ≅ δgfe.

Select all the expressions that will include a remainder.

What is the quotient of 3x^4+22x^3+37x^2-7x+10