can someone solve with explanation plz?
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1. User Answers Anonym
Solving for i is outside the radical .
- a=5+√3i
- b=5-√3i
[tex]\\ \sf\longmapsto ab[/tex]
[tex]\\ \sf\longmapsto (5+\sqrt{3}i)(5-\sqrt{3}i)[/tex]
[tex]\\ \sf\longmapsto 5^2-(\sqrt{3}i)^2[/tex]
[tex]\\ \sf\longmapsto 25-3i^2[/tex]
- i=√-1
[tex]\\ \sf\longmapsto 25-3(-1)[/tex]
[tex]\\ \sf\longmapsto 25+3[/tex]
[tex]\\ \sf\longmapsto 28[/tex]
