document.write( "Question 24587: Solve the system of equations by substitution: y= xsquared+2x-2 and y=3x+4
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Algebra.Com's Answer #854510 by josgarithmetic(39838)\"\" \"About 
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two expressions for y, are then equal.\r
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\n" ); document.write( "\n" ); document.write( "\"system%28y=x%5E2%2B2x-2%2Cy=3x%2B4%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"x%5E2%2B2x-2=3x%2B4\"\r
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\n" ); document.write( "\n" ); document.write( "\"x%5E2-x-6=0\"\r
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\n" ); document.write( "\n" ); document.write( "Try to factor.\r
\n" ); document.write( "\n" ); document.write( "\"%28x-3%29%28x%2B2%29=0\"\r
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\n" ); document.write( "\n" ); document.write( "Check each of x=3, and x=-2, and find which work and which do not, if any or either.
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