Can every expression be factored? Build and sketch each expression below as a rectangle if possible. Then write an equation showing that the area is equal to the product of its side length factors. Check by multiplying the factors to get the original expression. If the expression cannot be built as a rectangular area, explain why no rectangle exists and thus why the expression cannot be factored. [10 points] 2x2+7x+6
[10 points] 6x2+7x+2
[10 points] x2+4x+1
[10 points] 2xy+6x+y2+3y