document.write( "Question 1171980: What is the simplest form of the expression 7i( −3i) + 9? \n" ); document.write( "

Algebra.Com's Answer #796896 by ikleyn(52781) $\"\"$ $\"About$

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document.write( "    = 21*i^2 + 9 = -21*(-1) + 9 = 21 + 9 = 30.    ANSWER\r\n" );
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