document.write( "Question 1131442: Solve The Equation & Check:\r
\n" ); document.write( "\n" ); document.write( "a)\sqrt(q+2)=7\r
\n" ); document.write( "\n" ); document.write( "b)\sqrt(5-x)=x+1
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Algebra.Com's Answer #748105 by MathLover1(20849)\"\" \"About 
You can put this solution on YOUR website!
a)
\n" ); document.write( "\"sqrt%28q%2B2%29=7+\".......square both sides\r
\n" ); document.write( "\n" ); document.write( "\"%28sqrt%28q%2B2%29%29%5E2=7%5E2+\"\r
\n" ); document.write( "\n" ); document.write( "\"q%2B2=49+\"\r
\n" ); document.write( "\n" ); document.write( "\"q=49-2+\"\r
\n" ); document.write( "\n" ); document.write( "\"q=47+\"\r
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\n" ); document.write( "\n" ); document.write( "check:\r
\n" ); document.write( "\n" ); document.write( "\"sqrt%2847%2B2%29=7+\"\r
\n" ); document.write( "\n" ); document.write( "\"sqrt%2849%29=7+\"\r
\n" ); document.write( "\n" ); document.write( "\"7=7+\"\r
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\n" ); document.write( "\n" ); document.write( "b)\r
\n" ); document.write( "\n" ); document.write( "\"sqrt%285-x%29=x%2B1\"......square both sides\r
\n" ); document.write( "\n" ); document.write( "\"%28sqrt%285-x%29%29%5E2=%28x%2B1%29%5E2\"\r
\n" ); document.write( "\n" ); document.write( "\"5-x=x%5E2%2B2x%2B1\"\r
\n" ); document.write( "\n" ); document.write( "\"0=x%5E2%2B2x%2Bx%2B1-5\"\r
\n" ); document.write( "\n" ); document.write( "\"x%5E2%2B3x-4=0\"..factor\r
\n" ); document.write( "\n" ); document.write( "\"x%5E2-x%2B4x-4=0\"\r
\n" ); document.write( "\n" ); document.write( "\"%28x%5E2-x%29%2B%284x-4%29=0\"\r
\n" ); document.write( "\n" ); document.write( "\"x%28x-1%29%2B4%28x-1%29=0\"\r
\n" ); document.write( "\n" ); document.write( "\"%28x%2B4%29%28x-1%29=0\"\r
\n" ); document.write( "\n" ); document.write( "solutions:\r
\n" ); document.write( "\n" ); document.write( "\"%28x%2B4%29=0\"->\"x=-4\"\r
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\n" ); document.write( "\n" ); document.write( "\"%28x-1%29=0\"->\"x=1\"\r
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\n" ); document.write( "\n" ); document.write( "check:\r
\n" ); document.write( "\n" ); document.write( "\"sqrt%285-x%29=x%2B1\" ->\"x=-4\"\r
\n" ); document.write( "\n" ); document.write( "\"sqrt%285-%28-4%29%29=-4%2B1\"\r
\n" ); document.write( "\n" ); document.write( "\"sqrt%285%2B4%29=-3\"\r
\n" ); document.write( "\n" ); document.write( "\"sqrt%289%29=-3\"\r
\n" ); document.write( "\n" ); document.write( "±\"3=-3\"\r
\n" ); document.write( "\n" ); document.write( "=>\"-3=-3\"\r
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\n" ); document.write( "\n" ); document.write( "\"sqrt%285-x%29=x%2B1\" ->\"x=1\"\r
\n" ); document.write( "\n" ); document.write( "\"sqrt%285-1%29=1%2B1\" \r
\n" ); document.write( "\n" ); document.write( "\"sqrt%284%29=2\" \r
\n" ); document.write( "\n" ); document.write( "\"2=2\" \r
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