document.write( "Question 164593: *+*+*+*=*x*x*x* what it is the value of the star \n" ); document.write( "

Algebra.Com's Answer #121288 by MRperkins(300) $\"\"$ $\"About$

You can put this solution on YOUR website!
ok, I prefer to use x's rather than stars just because it is easier on the eyes.\r
\n" ); document.write( "\n" ); document.write( "So: we basically get $\"4x=x%5E4\"$
\n" ); document.write( "subtract 4x from both sides and get $\"0=x%5E4-4x\"$
\n" ); document.write( "Next:factor out an x from x^4 and 4x so: $\"0=x%28x%5E3-4%29\"$
\n" ); document.write( "The statement will be true when either x=0 or (x^3-4)=0
\n" ); document.write( "So, how do we know when x^3-4=0???
\n" ); document.write( "add 4 to both sides and you get $\"x%5E3=4\"$
\n" ); document.write( "take the cubed root of each side and you get x= the cubed root of 4
\n" ); document.write( "therefore, the star's value can either be 0 or the cubed root of 4 \n" ); document.write( "

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