how do i solve the quadratic equation x^2+20=4

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Guest Apr 20, 2016

+5

Best Answer

Are you sure you copied it right? If so, it has only complex roots:

Solve for x:
x^2+20 = 4

Subtract 20 from both sides:
x^2 = -16

Take the square root of both sides:
Answer: | x = 4 i or x = -4 i

Guest Apr 20, 2016

Guest · Answer 1 · 2016-04-20T04:15:04

Are you sure you copied it right? If so, it has only complex roots:

Solve for x:
x^2+20 = 4

Subtract 20 from both sides:
x^2 = -16

Take the square root of both sides:
Answer: | x = 4 i or x = -4 i

Melody · Answer 2 · 2016-04-20T04:44:02

Guest is right

It has NO REAL roots !

And most likely you have not learned about complex numbers yet.