Who closes the door when the bus driver gets off the bus?

Which shows one way to determine the factors of  x3  +  5x2  –  6x  –  30 by grouping? x(x2  –  5)  +  6(x2  –  5)x(x2  +  5)  –  6(x2  +  5)x2(x  –  5)  +  6(x  –  5)x2(x  +  5)  –  6(x  +  5)

What is the product of the radical expression. (7-2square root) (8+2 square root)

What is the quotient of m^6/5 ÷ 5/m^2? assume m does not equal pl