Teachers and parrents

Instructions:

Solve quadratic equation and find out values of unknown variables x1 and x2.

Example

  
-4.x2 + 8.x + 32=0/
=0
(x ).(x )=0
x1=
x2=

Solution

-4.x2 + 8.x + 32=0
x1=-2
x2=4

Solve exercises