12x^6 + 3x^5 - 10x^2 + 6x + 9 is this a numerical expression or algebraic expression what number is the smallest coefficient what is the degree of this expression what is the constant

You have a square piece of cardboard that measures 14 inches on each side. to build a box, you cut congruent squares out of each corner of the cardboard. use the picture to find the area of the cardboard you were used to build the box