document.write( "Question 928786: Find the rational zeros of the polynomial. List any irrational zeros correct to two decimal places.\r
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Algebra.Com's Answer #563882 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "Hi
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document.write( "f(x) = x^4 - x^3 - 7x^2 + 5x + 10 
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document.write( "1 + 1 - 7 -5 + 10 = 0,  16-8-28+10+10 = 0
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document.write( "Using Synthetic Division (x = -1  and x = 2  are roots found by plug and play)
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document.write( "-1	1	-1	-7	5	10
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document.write( "		-1	2	5	-10
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document.write( "	1	-2	-5	10	0
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document.write( "2		2	0	-10	
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document.write( "	1	0	-5	0	
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document.write( "f(x) = (x+1)(x-2)(x^2 - 5)= 0
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document.write( "x = -1, 2, 2.24, - 2.24
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