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3 years ago

I need help please!

2 answers:

5 0

X^2 + 1= 0
x^2= -1
x=i, -i

(x^3 + 2x)= 0
x(x^2 + 2= 0
x= 0, i√2, -i√2

(x^2-64)=0
(x+8)(x-8)=0
x= 8,-8

x=i, -i, 0, i√2, -i√2, 8,-8

vodomira [7]3 years ago

3 0

x^2 + 1 = 0
x^2 = -1
x =
x = i
:
(x^3 + 2x) = 0
Factor out x
x(x^2 + 2) = 0
x = 0

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