How to turn inches into square inches

Which shows one way to determine the factors of 4x3 + x2 – 8x – 2 by grouping?

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

Atriangle has verticals at b(-3,0), c(2,-1), d(-1,2). which transformation would produce an image with verticals b”(-2,1), c”(3,2), d”(0,-1)?