Y+3x=8;x=1,0,3 what is answer

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 of the symbols correctly relates the two numbers below check all that apply 6? 6

Which expression can be used to determine the slope of the line that passes through the points -6, three and one, -9