document.write( "Question 224409:
\n" ); document.write( "if 2x^2 - 14x + 29 = p(x+q)^2 +r holds for all real values of x, find the values of p,q and r. Hence, state the minimum value of the function and the corresponding value of x..\r
\n" ); document.write( "\n" ); document.write( "im stuck.. plz help :(
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Algebra.Com's Answer #167637 by stanbon(75887)\"\" \"About 
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if 2x^2 - 14x + 29 = p(x+q)^2 +r holds for all real values of x, find the values of p,q and r. Hence, state the minimum value of the function and the corresponding value of x..
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\n" ); document.write( "2x^2 - 14x + 29 = px^2 + 2pqx +pq^2 +r
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\n" ); document.write( "Matching up the coefficients you get:
\n" ); document.write( "p = 2
\n" ); document.write( "2pq= -14
\n" ); document.write( "pq^2+r = 29
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\n" ); document.write( "So:
\n" ); document.write( "p = 2
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\n" ); document.write( "q = (14/4) = 7/2
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\n" ); document.write( "2(7/2)^2+r = 29
\n" ); document.write( "(49/2) + r = (58/2)
\n" ); document.write( "r = 9/2
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\n" ); document.write( "Hence, state the minimum value of the function and the corresponding value of x
\n" ); document.write( "a = 2 ; b = -14
\n" ); document.write( "min occurs at x = -b/2a = 14/4 = 7/2
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\n" ); document.write( "2x^2 - 14x + 29
\n" ); document.write( "Minimum value is 2(29)^2 - 14*29 +29 = 1305
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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