document.write( "Question 88830: What's the solution for:\r
\n" ); document.write( "\n" ); document.write( "x^4 + 11x^2 - 80 \n" ); document.write( "

Algebra.Com's Answer #64582 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

You can put this solution on YOUR website!
To solve this you want to write it:
\n" ); document.write( "x^4 + 11x^2 - 80 = 0
\n" ); document.write( ":
\n" ); document.write( "Factor and solve for x^2:
\n" ); document.write( "(x^2 + 16)(x^2 - 5) = 0
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\n" ); document.write( "x^2 = +5
\n" ); document.write( "x = +Sqrt(5)
\n" ); document.write( "x = -Sqrt(5)
\n" ); document.write( "These are the only real solutions
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