document.write( "Question 389613: Find the x-intercepts of the graph of the equations:\r
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\n" ); document.write( " y = x^2 - 1 \n" ); document.write( "
Algebra.Com's Answer #276140 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( "x-intercepts are dtyermined when y = 0
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document.write( " x^2 - 3x + 2 = 0
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document.write( "factoring
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document.write( "(x-2)(x-1) = 0 Note:SUM of the inner product(-2x) and the outer product(-x) = -3x
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document.write( "(x-2)= 0    x = 2  x -Intercept Pt(2,0)
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document.write( "(x-1) = 0   x = 1  x -Intercept Pt(1,0)\r
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document.write( " x^2-1 = 0
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document.write( "    x^2 = 1
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document.write( "    x = ± 1        x -Intercepts: Pt(1,0)and Pt(-1,1)\r
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