How was this answered? i don't know how, pls. help

see explanation

Step-by-step explanation:

Using = i, then i² = ( )² = - 1

and i³ = i² × i = - 1 × i = - i

also

= i² × i² = - 1 × - 1 = 1

We can surmise that i raised to any multiple of 4 will equal 1

Given

( note 35 = 32 + 3 and 32 is a multiple of 4 ), thus

=

= 1 × i³ = - i

x=6 and x=3

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what do u need to know

step-by-step explanation: