document.write( "Question 145142: Evaluate k^2-5 when k =-6 \n" ); document.write( "
Algebra.Com's Answer #105974 by BrittanyM(80)\"\" \"About 
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For this problem, we've been given an expression and a value, so all we have to do is substitute the given value for the variable and solve.\r
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\n" ); document.write( "\n" ); document.write( "We have:\r
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\n" ); document.write( "\n" ); document.write( "\"k%5E2\"-5\r
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\n" ); document.write( "\n" ); document.write( "And we are given k=-6\r
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\n" ); document.write( "\n" ); document.write( "\"%28-6%29%5E2\"-5\r
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\n" ); document.write( "\n" ); document.write( "Since squared only means (-6) x (-6), we have a positive 36.\r
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\n" ); document.write( "\n" ); document.write( "36-5 = 31
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