Indicate the general rule for this sequence. find a 1 and the common difference. a 4 = 18

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)

Which value of c would make he following expression completely factored? 8x+cy

Which graph has a rate of change of zero