Evaluate x + 4 when x = 3

Parabolas y=−2x^2 and y=2x^2+k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.

What is the scale factor of almn to aopq?

Select the two binomials that are factors of this trinomial x^20 - x - 20