Factor the expression over the complex numbers x^2 + 18

asked Dec 22, 2020 38.1k views

1 vote

by Dwc

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3 votes

Answer:

$x=3i*√(2) \\x=-3i*√(2)$

Explanation:

Solve the associated quadratic equation to find its solutions:

$x^2+18=0\\x^2=-18\\x=+/-√(-18) \\x=+/-√(-1) *√(2*9) \\\\x=+/-i *√(2) *√(9)  \\\\x=+/-3i*√(2)$

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