document.write( "Question 33927This question is from textbook College Algebra
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document.write( ": A polynomial P is given
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document.write( "a.) Factor P into linear and irreducible quadratic factors with real coefficients.
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document.write( "b.) Factor P completely into linear factors with complex coefficients\r
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document.write( "46.) P(x) = x^3-2x-4
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document.write( " I got: a.) (x-4)(x^2-2)
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document.write( " b.) (x-4)(x-2i)(x+2i) is this factored correctly?\r
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document.write( "48.) P(x) = x^4+8x^2+16
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document.write( " a.) (x^2+4)^2
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document.write( " b.) (x-2i)^2(x+2i)^2\r
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document.write( "Sorry, I'm getting mixed up with the imaginary numbers!
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document.write( "Thank you very much - this is a tremendous help! \n" );
document.write( "
Algebra.Com's Answer #20307 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! x^2-2x-4 \n" ); document.write( "(x-2)(x^2+2x+2) \n" ); document.write( "Using the quadratic formula on x^2+2x+2 get: \n" ); document.write( "x=[-2+-sqrt(4-8)]/2 \n" ); document.write( "x=-1+2i or x=-1-2i \n" ); document.write( "Factors are (x-2)(x+1-2i)(x+1+2i) \n" ); document.write( "x^4+8x^2+16 \n" ); document.write( "(x^2+4)^2 \n" ); document.write( "(x+2i)^2(x-2i)^2 \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |