document.write( "Question 891710: Multiply and simplify: (5 − 2i)(4 + 7i).
\n" ); document.write( "Write the answer in the form a + bi, where a and b are real numbers.\r
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\n" ); document.write( "\n" ); document.write( "I used FOIL and got the answer: (-14i^2)+27i+20
\n" ); document.write( "but every online calculator is telling me the answer is 34+27i
\n" ); document.write( "What is the correct answer?
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Algebra.Com's Answer #539964 by Tatiana_Stebko(1539)\"\" \"About 
You can put this solution on YOUR website!
\"%285-2i%29%284+%2B+7i%29+\"
\n" ); document.write( "Use FOIL
\n" ); document.write( "\"20%2B35i-8i-14i%5E2\"
\n" ); document.write( "since \"i%5E2=-1\"
\n" ); document.write( "\"20%2B27i-14%2A%28-1%29=20%2B27i%2B14=34%2B27i\"
\n" ); document.write( "Answer: \"34%2B27i\"
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