document.write( "Question 675171: y=x^2-4, if x=-2 what would y equal?
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Algebra.Com's Answer #419624 by jim_thompson5910(35256)\"\" \"About 
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y=x^2-4\r
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\n" ); document.write( "\n" ); document.write( "y=(-2)^2-4\r
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\n" ); document.write( "\n" ); document.write( "y=4-4\r
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\n" ); document.write( "\n" ); document.write( "y=0\r
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\n" ); document.write( "\n" ); document.write( "So when x = -2, y = 0
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