document.write( "Question 246231: This question has proven very tricky, any help would be greatly appreciated. I can solve for x and y on the main problem, but cannot figure this one out. Help please!\r
\n" ); document.write( "\n" ); document.write( "Let f(x) = x2 - 8x + 16. Find x so that f(x) = 22
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Algebra.Com's Answer #179878 by kensson(21)\"\" \"About 
You can put this solution on YOUR website!
\"x%5E2+-8x+%2B+16+=+22\"\r
\n" ); document.write( "\n" ); document.write( "Subtract 22 from each side\r
\n" ); document.write( "\n" ); document.write( "\"x%5E2+-8x+-6+=+0\"\r
\n" ); document.write( "\n" ); document.write( "This doesn't factorise. Use the formula:\r
\n" ); document.write( "\n" ); document.write( "\"+x+=+%288+%2B-+sqrt%2864+%2B+24%29%29+%2F+2+\"\r
\n" ); document.write( "\n" ); document.write( "\"+x+=+4+%2B-+sqrt%2822%29+\"
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