Question

Find the roots of x^2+256=0
a.16+-i
b.2+-4i
c.+-16i
d.+-4i

Answer 1

x^2 = -256
or, x^2 = 256 X -1
or, x = sqrt (256)X sqrt(-1)

Answer 2

I hope you know the sqrt of -1 is i
and you can calculate the sqrt of 256

Answer 3

so whats the answer?

Answer 4

what is the square root of 256??