document.write( "Question 1098703: 1. √50 + √72\r
\n" ); document.write( "\n" ); document.write( "2. One of the roots of X^2-X-1=0 is:\r
\n" ); document.write( "\n" ); document.write( "3. Simplify: x+x/y
\n" ); document.write( " ________
\n" ); document.write( " x-x/y\r
\n" ); document.write( "\n" ); document.write( "4. Simplify: 3x/y+2
\n" ); document.write( " _______
\n" ); document.write( " x/y-2
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Algebra.Com's Answer #713079 by Boreal(15235)\"\" \"About 
You can put this solution on YOUR website!
The first is sqrt (25)*sqrt(2)+sqrt(36)*sqrt(2)
\n" ); document.write( "=5 sqrt(2)+6 sqrt(2)=11 sqrt(2)
\n" ); document.write( "Do these by adding the square roots of the same number.
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\n" ); document.write( "x^2-x-1=0
\n" ); document.write( "x=(1/2)(1+/- sqrt(1+4)
\n" ); document.write( "one root is (1/2)( 1+ sqrt(5)); the other is (1/2)(1-sqrt(5))
\n" ); document.write( "\"graph%28300%2C300%2C-10%2C10%2C-10%2C10%2Cx%5E2-x-1%29\"
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\n" ); document.write( "x+(x/y)=(xy+x)/y=x(y+1)/y
\n" ); document.write( "x-(x/y) is (xy-x)/y or x(x-1)/y
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\n" ); document.write( "3x/y +2
\n" ); document.write( "(3x+2y)/y
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\n" ); document.write( "if that is 3x/(y+2), it can't be simplified further.
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\n" ); document.write( "if this is (x/y)-2, then it is (x-2y)/y; if it is x/(y-2), it can't be simplified.
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