Tính giá trị biểu thức 18(-xy)^4 : (4x^2y)^2

Solve each quadratic equation by factoring and using the zero product property. [tex]x^2+6x+8=0[/tex]

Factor this polynomial completely. 12x^2+ x-6

Aconstruction worker needs to put a rectangular window in the side of a building he knows from measuring that the top and bottom of the window have a width of 8bfeet and the sides have a length of 15 feet he also measured one diagonal to be 17 feet what is the length of the other diagonal