Divide using long division. Check your answers. (x^2-3x-40) ÷ (x+5)

Can you pls show the steps too?

Multiplying an even number of negative numbers gives an answer that is choose from:

If the slope of one line equals the slope of another line then ? a) the two lines are intersecting lines b) the two lines are perpendicular lines c) the two lines are parallel lines d) the two lines always have very steep slopes

What does x = in this equation x+3+2x=x+5