Evaluate the expression for x = -1, y = 4 and z = -2. Write your answer as an integer or round to the nearest hundredth, if needed.
2x — (xy+1)^2 – 2

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.