( A ) -3/4 ( B ) -7/4 ( C ) 5/8 ( D ) 9/7 ( E ) -8/5 f ( x ) = ( 2x + 1 ) ( x + 3 ) = 2x2 + 6x + x + 3 = 2x2 + 7x + 3 The x - value of the axis of symmetry ...
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