(-2x)(x^2)+(-2x)(-3) = -2x^3 + 6x
Boundary lines are dotted whenever the sign is strictly greater than or less than.
The only reason a line is not dashed would be that it would be equal to. A quick way to remember this would be that the extra line provided to make it equal would fill in the blanks. Hope this tip helps you, helped me ace many tests!
Answer:
81
Step-by-step explanation:
Fbdudbd goghuh dudbdde ufysjafdt djdysuns gdbdusts
Plug in the possible answers into the equation and solve for x. x=0