What does it mean to interpret/ How do I interpret?

What is the factored form of the following expressions? d^2 – 13d + 36

Write two point-slope equations for the line passing through the points (6, 5) and (3, 1)

The construction of copying qpr is started below. the next step is to set the width of the compass to the length of ab. how does this step ensure that a new angle will be congruent to the original angle? by using compass take the measures of angle and draw the same arc according to it.