document.write( "Question 747660: why is \"x%5E2%2B144\" not factorable according to cliff notes? \n" ); document.write( "
Algebra.Com's Answer #455040 by FrankM(1040)\"\" \"About 
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Because x^2 would need to be -144. The square of any real number is positive. \r
\n" ); document.write( "\n" ); document.write( "X can be 12i where i is the square root of -1. This is a solution, but not a real one.
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