Can someone solve all of this for me (50 FOR BRAINLIEST)

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

The table below shows the approximate height of an object x seconds after the object was dropped. the function h(x)= -16x^2 +100 models the data in the table. for which value of x would this model make it the least sense to use? a. -2.75 b. 0.25 c. 1.75 d. 2.25

What is the distance from zero if a quadratic function has a line of symmetry at x=-3 and a zero at 4