SOLUTION: if z = -5, what is the value of the expression below? 2z^2 - 4z +3

Algebra ->  Expressions -> SOLUTION: if z = -5, what is the value of the expression below? 2z^2 - 4z +3      Log On


   



Question 532796: if z = -5, what is the value of the expression below?

2z^2 - 4z +3

Answer by boilpoil(127) About Me  (Show Source):
You can put this solution on YOUR website!
2(-5)^2-4(-5)+3
=2(25)+20+3
=50+20+3
=73