What makes 48 is it 68x12 use a calculator to get the answer because i do not get it

Marya wants to factor the polynomial 36x^3 -22x^2 - 144x.which term can she add to the polynomial that would not change its grestest common factor? check all that apply

Aperpendicular bisector, cd is drawn through point con ab if the coordinates of point a are (-3, 2) and the coordinates of point b are (7,6), the x-intercept of cd is point lies on cd.

Evaluate 8j -k+148j−k+14 when j=0.25j=0.25 and k=1k=1.