Respuesta :

GHIZLANE

Answer:

(10 + 3i)(10 - 3i)=109

Step-by-step explanation:

[tex](10+3i)(10-3i)=(10^{2} -10*3i)+(3*10i-3*3i^2)\\ =100-30i+30i-9i^2\\=100-9*(-1)\\=100+9=109[/tex]

chargergirl0415

Answer:

B) 109

Step-by-step explanation:

I took the test and got a 100%

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