SOLUTION: Solve the equation by using the square root property. Simplify all radicals. z^2= 2.25 A.) The solution set is ___ B.) Empty set

Algebra ->  Radicals -> SOLUTION: Solve the equation by using the square root property. Simplify all radicals. z^2= 2.25 A.) The solution set is ___ B.) Empty set      Log On


   

Question 1065097: Solve the equation by using the square root property. Simplify all radicals.
z^2= 2.25
A.) The solution set is ___
B.) Empty set
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+z%5E2+=+2.25+
Multiply both sides by +4+
+4%2Az%5E2+=+9+
+z%5E2+=+9%2F4+
Take the square root of both sides
+z+=+3%2F2+
and also
+z+=+-3%2F2+