document.write( "Question 666077: Simplify and express (4+i)(4-i) in the form a+bi \n" ); document.write( "

Algebra.Com's Answer #414243 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi,
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document.write( "Simplify and express (4+i)(4-i) in the form a+bi
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document.write( "(4+i)(4-i) = 16 + 1 = 17
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document.write( "Verify with FOIL
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document.write( "F	First terms 16
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document.write( "O	Outside terms -4i
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document.write( "I	Inside terms   4i
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document.write( "L	Last terms    Note i^2 = -1
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