document.write( "Question 362310: What's the quadratic equation if X=7i and X=-7i \n" ); document.write( "

Algebra.Com's Answer #258207 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
If $\"7i\"$ and $\"-7i\"$ are roots, then $\"%28x-7i%29\"$ and $\"%28x%2B7i%29\"$ are factors.
\n" ); document.write( " $\"f%28x%29=%28x-7i%29%28x%2B7i%29\"$
\n" ); document.write( " $\"f%28x%29=x%5E2-7ix%2B7ix-49i%5E2\"$
\n" ); document.write( " $\"highlight%28f%28x%29=x%5E2%2B49%29\"$
\n" ); document.write( "Any non-zero constant multiplying f(x) is also another quadratic equation that is a solution.\r
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