document.write( "Question 1045476: If x+4-4i is a factor of the function f(x) = px^2 + qx + r, show that p,q and r are in geometric progression \n" ); document.write( "

Algebra.Com's Answer #660934 by josgarithmetic(39617) $\"\"$ $\"About$

You can put this solution on YOUR website!
Not sure if x is real or can be complex.\r
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\n" ); document.write( "\n" ); document.write( " $\"%28x%2B4-4i%29%28x%2B4%2B4i%29=px%5E2%2Bqx%2Br\"$
\n" ); document.write( " $\"%28%28x%2B4%29-4i%29%28%28x%2B4%29%2B4i%29=px%5E2%2Bqx%2Br\"$
\n" ); document.write( " $\"%28x%2B4%29%5E2-%2816%29%28-1%29\"$
\n" ); document.write( " $\"x%5E2%2B16x%2B16%2B16\"$
\n" ); document.write( " $\"x%5E2%2B16x%2B32=px%5E2%2Bqx%2Br\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"system%28p=1%2Cq=16%2Cr=32%29\"$ but these are not in successive geometric progression. \n" ); document.write( "

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