document.write( "Question 71062: Factor completely over the imaginary number: x^4-3x^2-40 \n" ); document.write( "
Algebra.Com's Answer #50811 by checkley75(3666)\"\" \"About 
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x^4-3x^2-40
\n" ); document.write( "(x^2-8)(x^2+5) USING THE QUADRATIC EQUATION WE GET
\n" ); document.write( "X=(0+-SQRT[-4*1*-8])/2
\n" ); document.write( "X=(+-SQRT[+32])/2
\n" ); document.write( "X=(+-SQRT32}/2
\n" ); document.write( "X=(+-5.657)/2
\n" ); document.write( "X=5.657/2
\n" ); document.write( "X=2.828 ANSWER
\n" ); document.write( "X=-5.657/2
\n" ); document.write( "X=-2.828 ANSWER
\n" ); document.write( "----------------------------------------------------
\n" ); document.write( "X=(0+-SQRT[0-4*1*5])/2
\n" ); document.write( "X=(+-SQRT-20)/2
\n" ); document.write( "X=(+-4.47i)/2
\n" ); document.write( "X=+4.47I/2
\n" ); document.write( "X=2.235i ANSWER
\n" ); document.write( "X=-4.47i/2
\n" ); document.write( "X=-2.235i ANSWER
\n" ); document.write( " \n" ); document.write( "
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