document.write( "Question 174055This question is from textbook Algebra 2
\n" ); document.write( ": x^4-17x^2+16=0 \n" ); document.write( "

Algebra.Com's Answer #128961 by stanbon(75887) $\"\"$ $\"About$

You can put this solution on YOUR website!
x^4-17x^2+16=0
\n" ); document.write( "Factor:
\n" ); document.write( "x^4 -16x^2-x^2+16 = 0
\n" ); document.write( "x^2(x^2-16) -(x^2-16) = 0
\n" ); document.write( "(x^2-16)(x^2-1) = 0
\n" ); document.write( "(x-4)(x+4(x-1)(x+1) = 0
\n" ); document.write( "x = 4 or -4 or 1 or -1
\n" ); document.write( "==========================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "

\n" );