Answer:
the answer are x=4y-20
and x represents the independent variable and y represents the dependent variable
= 3x(2x^2 - 4x - 5) - 6(2x^2 - 4x - 5)
= 6x^3 - 12x^2 - 15x - 12x^2 + 24x + 30
= 6x^3 - 24x^2 + 9x + 30 (answer)
-.5 , -1.75, 3 hope that's what you wanted<span />
