document.write( "Question 131966: I need help on this problem please: (5-4i) and it has the squared sign outside the parentheses by the 4i.Thanks for your help in advance LH and have a great day! \n" ); document.write( "

Algebra.Com's Answer #96357 by Earlsdon(6294) $\"\"$ $\"About$

You can put this solution on YOUR website!
Simplify:
\n" ); document.write( " $\"%285-4i%29%5E2\"$ Use the FOIL method to multiply.
\n" ); document.write( " $\"%285-4i%29%285-4i%29+=+25-20i-20i%2B16i%5E2\"$ Combine like-terms.
\n" ); document.write( " $\"25-40i%2B16i%5E2\"$ Replace $\"i%5E2\"$ with its equivalent, -1
\n" ); document.write( " $\"25-40i%2B16%28-1%29\"$ Simplify.
\n" ); document.write( " $\"25-40i-16+=+9-40i\"$ \n" ); document.write( "

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