i'm not sure how to go about this one. any help would be appreciated!
find all x's that would make the 2x2 matrix below = to a shear-dilation:
1st row: 1, x
2nd row: 3, 4
find all x's that would make the 2x2 matrix below = to a shear-dilation:
1st row: 1, x
2nd row: 3, 4