document.write( "Question 173213: What is the vertex of the graph of y=2(x-3)(x+1)\r
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\n" ); document.write( "\n" ); document.write( "What is the vertex of the graph of y=2x²+8x-3
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Algebra.Com's Answer #128079 by Mathtut(3670)\"\" \"About 
You can put this solution on YOUR website!
you have to complete the square.
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\n" ); document.write( "\"y=2%28x%5E2%2B8x%2B16%29-3-32\" added 16(2)...so had to subtract 32 outside the parenthesis
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\n" ); document.write( "\"y=2%28x%2B4%29%5E2-35\" this in vertex form (h,k) is the vertex
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\n" ); document.write( "vertex is at (-4,-35)
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