document.write( "Question 1065693: Solve:
\n" ); document.write( "4cos^2x-4cosx+1=0
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Algebra.Com's Answer #680860 by KMST(5328)\"\" \"About 
You can put this solution on YOUR website!
\"4u%5E2%2B4u%2B1=%282u%2B1%29%5E2\" as you knew from factoring polynomials.
\n" ); document.write( "Now, re-write that with \"cos%28x%29\" instead of \"u\" .
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\n" ); document.write( "Factoring polynomials will follow you for as long as you have a math course.
\n" ); document.write( "It does not matter if you are studying trigonometry or calculus,
\n" ); document.write( "you cannot forget factoring.
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