Precalc

Question 1

define a perfect square

Answer 1

if the middle product is = to twice the product of the square root of the outer terms. Example the trinomial 4x^2-4xy+y^2 A=2x B=y since the middle term is double the product of AB we have a perfect square.][\ppp9ik

Question 2

factor x^(-1/2) from 3x^(3/2)-9x^(1/2)+6x^(-1/2)

Answer 2

x^2-3x+2