document.write( "Question 595213: For i =square root −1, if 3i(2 + 5i) = x + 6i,then x = ?
\n" ); document.write( "A. –15
\n" ); document.write( "B. 5
\n" ); document.write( "C. 5i
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\n" ); document.write( "E. 27i
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Algebra.Com's Answer #377033 by jim_thompson5910(35256)\"\" \"About 
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3i(2 + 5i) = x + 6i\r
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\n" ); document.write( "\n" ); document.write( "6i + 15i^2 = x + 6i\r
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\n" ); document.write( "\n" ); document.write( "6i + 15(-1) = x + 6i\r
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\n" ); document.write( "\n" ); document.write( "6i - 15 = x + 6i\r
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\n" ); document.write( "\n" ); document.write( "- 15 = x\r
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\n" ); document.write( "\n" ); document.write( "x = -15\r
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\n" ); document.write( "\n" ); document.write( "So the answer is choice A
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