document.write( "Question 187610This question is from textbook saxon algebra 2
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document.write( ": Find the roots of the polynomial function.
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document.write( "y=x^3+8
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document.write( "y=x^3+8=(x+2)(x^2-2x+4)
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document.write( "(-2)^2-4(1)(4)=12
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document.write( "one real root= -2
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document.write( "Could someone please check this for me? \n" );
document.write( "
Algebra.Com's Answer #140624 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Find the roots of the polynomial function. \n" ); document.write( "y=x^3+8 \n" ); document.write( "y=x^3+8=(x+2)(x^2-2x+4) \n" ); document.write( "------------- \n" ); document.write( "x+2=0 or x^2-2x+4 = 0 \n" ); document.write( "x = -2 or Use the quadratic Formula: \n" ); document.write( "--------------------------- \n" ); document.write( "x = [2 +- sqrt(4-4*1*4)]/2 \n" ); document.write( "x = [2 +- sqrt(-12)]/2 \n" ); document.write( "x = [2 +- 2isqrt(3)]/2 \n" ); document.write( "x = [1 +- isqrt(3) \n" ); document.write( "================================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |