SOLUTION: how would you simplify this equation {{{ 4x^2 + 80 = 0}}}? thank you
Algebra
->
Radicals
-> SOLUTION: how would you simplify this equation {{{ 4x^2 + 80 = 0}}}? thank you
Log On
Algebra: Radicals -- complicated equations involving roots
Section
Solvers
Solvers
Lessons
Lessons
Answers archive
Answers
Click here to see ALL problems on Radicals
Question 182383
This question is from textbook
:
how would you simplify this equation
? thank you
This question is from textbook
Answer by
edjones(8007)
(
Show Source
):
You can
put this solution on YOUR website!
4x^2 + 80 = 0
x^2+20=0 divide each side by 4
x^2=-20
x=+-sqrt(-20)
=+-sqrt(-1*5*4)
x=+-(2sqrt(5)i)
x=2sqrt(5)i, x=-2sqrt(5)i
.
Ed