document.write( "Question 647919: my college grad parents have failed me on this:\r
\n" ); document.write( "\n" ); document.write( "(x-1)2 - (x+1)2=4\r
\n" ); document.write( "\n" ); document.write( "solve for x
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Algebra.Com's Answer #406470 by Algebraic(50)\"\" \"About 
You can put this solution on YOUR website!
I think this is what you meant when posting your problem: \"%28x-1%29%5E2+-+%28x%2B1%29%5E2=4\"\r
\n" ); document.write( "\n" ); document.write( "Firstly, we must rewrite this problem so it is easier to understand.\r
\n" ); document.write( "\n" ); document.write( "Step 1: Rewrite the problem without having to use powers\r
\n" ); document.write( "\n" ); document.write( "\"%28x-1%29%5E2+-+%28x%2B1%29%5E2=4\"
\n" ); document.write( "\"%28x-1%29%28x-1%29+-+%28x%2B1%29%28x%2B1%29=4\"\r
\n" ); document.write( "\n" ); document.write( "Step 2: Distribute the left side parenthesis\r
\n" ); document.write( "\n" ); document.write( "\"%28x-1%29%28x-1%29+-+%28x%2B1%29%28x%2B1%29=4\"
\n" ); document.write( "\"%28x%5E2+-+x+-+x+%2B1%29+-+%28x%2B1%29%28x%2B1%29=4\"\r
\n" ); document.write( "\n" ); document.write( "Step 3: Distribute the right side parenthesis\r
\n" ); document.write( "\n" ); document.write( "\"%28x%5E2+-+x+-+x+%2B1%29+-+%28x%5E2+%2B+x+%2B+x+%2B+1%29=4\"\r
\n" ); document.write( "\n" ); document.write( "Step 4: Combine like terms\r
\n" ); document.write( "\n" ); document.write( "\"%28x%5E2+-+x+-+x+%2B1%29+-+%28x%5E2+%2B+x+%2B+x+%2B+1%29=4\"
\n" ); document.write( "\"%28x%5E2+-+2x+%2B1%29+-+%28x%5E2+%2B+2x+%2B+1%29=4\"\r
\n" ); document.write( "\n" ); document.write( "Step 4: Continue combining like terms\r
\n" ); document.write( "\n" ); document.write( "\"%28x%5E2+-+2x+%2B1%29+-+%28x%5E2+%2B+2x+%2B+1%29=4\"\r
\n" ); document.write( "\n" ); document.write( "All of the terms cancel out, giving you 0\r
\n" ); document.write( "\n" ); document.write( "What you get: 0 = 4\r
\n" ); document.write( "\n" ); document.write( "This means that this equation is inconsistent, meaning that there are no solutions for this system.\r
\n" ); document.write( "\n" ); document.write( "0 cannot be equal to 4.
\n" ); document.write( "The answer is no solution.
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