document.write( "Question 74406This question is from textbook introduction and intermediate algebra
\n" ); document.write( ": solve 2x - 7*(sq.rt of x) - 30 = 0 \n" ); document.write( "
Algebra.Com's Answer #53430 by scott8148(6628)\"\" \"About 
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let \"y=sqrt%28x%29\", then substitute\r
\n" ); document.write( "\n" ); document.write( "\"2y%5E2-7y-30=0\"\r
\n" ); document.write( "\n" ); document.write( "using quadratic formula: \"y=%287%2B-sqrt%28289%29%29%2F4\" or \"y=%287%2B-17%29%2F4\"\r
\n" ); document.write( "\n" ); document.write( "so \"y=6\" and \"y=-%285%2F2%29\"\r
\n" ); document.write( "\n" ); document.write( "since \"x=y%5E2\";\r
\n" ); document.write( "\n" ); document.write( "then \"x=36\" and \"x=25%2F4\"\r
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\n" ); document.write( "\n" ); document.write( "you should note that for the \"x=25%2F4\" value, it is the negative square root that satisfies the equation
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