document.write( "Question 550566: can you expand this: (4z-3)^2 \n" ); document.write( "
Algebra.Com's Answer #358848 by jim_thompson5910(35256)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "\"%284z-3%29%5E2\" Start with the given expression.\r
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\n" ); document.write( "\n" ); document.write( "\"%284z-3%29%284z-3%29\" Expand. Remember something like \"x%5E2=x%2Ax\".\r
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\n" ); document.write( "\n" ); document.write( "Now let's FOIL the expression.\r
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\n" ); document.write( "\n" ); document.write( "Remember, when you FOIL an expression, you follow this procedure:\r
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\n" ); document.write( "\n" ); document.write( "\"%28highlight%284z%29-3%29%28highlight%284z%29-3%29\" Multiply the First terms:\"%284%2Az%29%2A%284%2Az%29=16%2Az%5E2\".\r
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\n" ); document.write( "\n" ); document.write( "\"%28highlight%284z%29-3%29%284z%2Bhighlight%28-3%29%29\" Multiply the Outer terms:\"%284%2Az%29%2A%28-3%29=-12%2Az\".\r
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\n" ); document.write( "\n" ); document.write( "\"%284z%2Bhighlight%28-3%29%29%28highlight%284z%29-3%29\" Multiply the Inner terms:\"%28-3%29%2A%284%2Az%29=-12%2Az\".\r
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\n" ); document.write( "\n" ); document.write( "\"%284z%2Bhighlight%28-3%29%29%284z%2Bhighlight%28-3%29%29\" Multiply the Last terms:\"%28-3%29%2A%28-3%29=9\".\r
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\n" ); document.write( "\n" ); document.write( "So we have the terms: \"16%2Az%5E2\", \"-12%2Az\", \"-12%2Az\", \"9\" \r
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\n" ); document.write( "\n" ); document.write( "\"16%2Az%5E2-12%2Az-12%2Az%2B9\" Now add every term listed above to make a single expression.\r
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\n" ); document.write( "\n" ); document.write( "\"16z%5E2-24z%2B9\" Now combine like terms.\r
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\n" ); document.write( "\n" ); document.write( "So \"%284z-3%29%5E2\" FOILs to \"16z%5E2-24z%2B9\".\r
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\n" ); document.write( "\n" ); document.write( "In other words, \"%284z-3%29%5E2=16z%5E2-24z%2B9\".
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