document.write( "Question 959074: What is the solution set of y = x^2 + 2x + 7 and y = x + 7? \n" ); document.write( "
Algebra.Com's Answer #586164 by stanbon(75887)\"\" \"About 
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What is the solution set of
\n" ); document.write( "y = x^2 + 2x + 7 and y = x + 7?
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\n" ); document.write( "Substitute for \"y\" and solve for \"x\"::
\n" ); document.write( "x^2 + 2x + 7 = x + 7
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\n" ); document.write( "x^2 + x = 0
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\n" ); document.write( "Factor:
\n" ); document.write( "x(x+1) = 0
\n" ); document.write( "x = 0 or x = -1
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\n" ); document.write( "Solve for \"y\":
\n" ); document.write( "If x = 0, y = 0+7 = 7
\n" ); document.write( "If x = 1, y = 1+7 = 8
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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