2. ( f o g )(x) = f[ g(x) ]
= f( x + 2 )
= 2( x + 2 )² - 2
= 2( x² + 4x + 4 ) - 2
= 2x² + 8x + 8 - 2
= 2x² + 8x + 6
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2. ( f o g )(x) = f[ g(x) ]
= f( x + 2 )
= 2( x + 2 )² - 2
= 2( x² + 4x + 4 ) - 2
= 2x² + 8x + 8 - 2
= 2x² + 8x + 6