+0  
 
+1
147
1
avatar+1015 

Simplify and Enter your answer, in standard form

AngelRay  Mar 4, 2018
 #1
avatar+13514 
+1

-6i (5+3i)     expand   (remember i = sqrt(-1)    so   i^2 = -1)

-30 i   -18 (i^2)

-18(-1) -30i

18-30i

ElectricPavlov  Mar 4, 2018

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