document.write( "Question 258453: find the zeros of f(x) and state the multiplicity of each zero.\r
\n" ); document.write( "\n" ); document.write( "1. f(x)=x^4+7x^2-144 \n" ); document.write( "

Algebra.Com's Answer #190267 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
You can factor the equation.
\n" ); document.write( " $\"x%5E4%2B7x%5E2-144=%28x%5E2%2B16%29%28x%5E2-9%29\"$
\n" ); document.write( "Real zeros:
\n" ); document.write( " $\"x%5E2-9=0\"$
\n" ); document.write( " $\"x%5E2=9\"$
\n" ); document.write( " $\"x=0+%2B-+3\"$
\n" ); document.write( "x=3 and x=-3 with multiplicity of 1.
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\n" ); document.write( "Complex zeros:
\n" ); document.write( " $\"x%5E2%2B16=0\"$
\n" ); document.write( " $\"x%5E2=-16\"$
\n" ); document.write( " $\"x=0+%2B-+4i\"$
\n" ); document.write( "x=4i and x=-4i with multiplicity of 1.
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\n" ); document.write( " $\"+graph%28+300%2C+300%2C+-5%2C+5%2C+-50%2C+50%2Cx%5E4%2B7x%5E2-144%29+\"$ \n" ); document.write( "

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