document.write( "Question 403108: (-4+3i)-(8+i) \n" ); document.write( "
Algebra.Com's Answer #285080 by rvquartz(19)![]() ![]() You can put this solution on YOUR website! the 'i' portion is the 'imaginary part' \n" ); document.write( "the 'non-i' portion is the 'real part'\r \n" ); document.write( "\n" ); document.write( "when you have a number with both a real part and an imaginary part, it is called a complex number\r \n" ); document.write( "\n" ); document.write( "the 'real parts' and 'imaginary parts' are orthogonal; that kind of means that they 'exist in their own separate dimensions'\r \n" ); document.write( "\n" ); document.write( "because of that, you can perform addition and subtraction operations on both parts of a complex number independently\r \n" ); document.write( "\n" ); document.write( "we are SUBTRACTING one complex number from another complex number\r \n" ); document.write( "\n" ); document.write( "real part: \n" ); document.write( "-4 MINUS 8 = -12\r \n" ); document.write( "\n" ); document.write( "imaginary part: \n" ); document.write( "3i MINUS i = 2i\r \n" ); document.write( "\n" ); document.write( "so the answer is: \n" ); document.write( "(-12 + 2i) \n" ); document.write( " |