Which of the following is a solution of x^2 2x = −2? x = 4 − 3i x = −4 3i x = −1 i x = 1 − i

asked Nov 2, 2016 89.2k views

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Which of the following is a solution of x^2 2x = −2?

x = 4 − 3i
x = −4 3i
x = −1 i
x = 1 − i

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$x^2+2x=-2\\ x^2+2x+1=-1\\ (x+1)^2=-1\\ x+1=√(-1)\vee x+1=-√(1)\\ x=-1+i \vee x=-1-i$

Practual answered Nov 8, 2016

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