simplify 6v2 +4v -v2 +8-7v
12x+4(3y+2x)
4h+5(2h+3s)
factorize 20x^2-45z^2
6p
10pt
factorzie 20x^2-45z^2
if A is (-1,7) and B is (3/-1), find the equation of the perpendicular bisector of AB.
-5(2h+3i)
factorize (-4-x^2)
80/6+120/4