What are the solutions of the equation x4 + 3x2 + 2 = 0? use u substitution to solve. mc018-1.jpg and x = ±1 mc018-2.jpg and x = ±i mc018-3.jpg and x = ±i mc018-4.jpg and x = ±1

ANSWER


or



EXPLANATION

We want to solve the equation,



We rewrite the equation to get,



We can now let


We substitute this value to get,



We factor this to get,



This implies that,


or



But


Thus implies that,




or

What is the last question i don’t see it?