What is the coefficient in the following expression?
5a2-7

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

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'

Rhombus adef is inscribed into a triangle abc so that they share angle a and the vertex e lies on the side bc . what is the length of the side of the rhombus if ab=c, and ac=b.