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How do I solve (z+7)^2=3

How do I solve (z+7)^2=3
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1 vote
How do I solve (z+7)^2=3

asked
User Kalim
by
8.0k points

1 Answer

5 votes
(z+7)^2=3
z^2+14z+46=0
z={-14+-√(14^2-4.1.46)}/2.1
=-14+-√(196-184)/2
=-14+-√12/2
=-14+-2√3/2
=-7+-√3
so it is,
z=-7+√3
or,
z=-7-√3
answered
User Dave Z Dopson
by
8.6k points
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