document.write( "Question 1080451: Find the solutions to the following systems of equations:
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document.write( "(a){x^2+y^2= 100
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document.write( " y−x= 2
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document.write( "(b){y−log base9(x+ 1) = 0
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document.write( " y−log base9(x) = 1/2. \n" );
document.write( "
Algebra.Com's Answer #694569 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Find the solutions to the following systems of equations: \n" ); document.write( "(a){x^2+y^2= 100 \n" ); document.write( "y−x= 2 \n" ); document.write( "---- \n" ); document.write( "x^2 + (x+2)^2 = 100 \n" ); document.write( "x^2 + x^2 + 4x -96 = 0 \n" ); document.write( "x^2 + 2x - 48 = 0 \n" ); document.write( "x = 6 or x = -8 \n" ); document.write( "If x = 6, y = -9 \n" ); document.write( "If x = -8, y = \n" ); document.write( "--------------------------- \n" ); document.write( "(b){y−log base9(x+ 1) = 0 \n" ); document.write( "y−log base9(x) = 1/2. \n" ); document.write( "----- \n" ); document.write( "Substitute for \"y\": \n" ); document.write( "log9(x)+(1/2) - log9(x+1) = 0 \n" ); document.write( "----- \n" ); document.write( "log9[x/(x+1)] = -1/2 \n" ); document.write( "x/(x+1) = 9*(-1/2) \n" ); document.write( "x/(x+1) = 1/3 \n" ); document.write( "----- \n" ); document.write( "3x = x+1 \n" ); document.write( "2x = 1 \n" ); document.write( "x = 1/2 \n" ); document.write( "-------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "-------------\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |