document.write( "Question 369555: How do you write 3i(7-9i) in standard form? \n" ); document.write( "

Algebra.Com's Answer #263345 by jsmallt9(3758) $\"\"$ $\"About$

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3i(7-9i)
\n" ); document.write( "First, use the Distributive Property to multiply:
\n" ); document.write( " $\"21i+-+27i%5E2\"$
\n" ); document.write( "Since $\"i%5E2+=+-1\"$ this becomes:
\n" ); document.write( "21i - 27(-1)
\n" ); document.write( "which simplifies to
\n" ); document.write( "21i + 27
\n" ); document.write( "Since standard form has the real part first, we'll use the Commutative Property of Addition to reorder the expression:
\n" ); document.write( "27 + 21i
\n" ); document.write( " \n" ); document.write( "

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