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N i l ai a y an g m e n ye babkan f u n g s i k u a d r a t f ( x ) = ( a − 1 ) x 2 + 2 a x + ( a + 4 ) d e f ini t p os i t i f a d a l ah ....

  1. undefined

  2. a less than 1

  3. a greater than 1

  4. a greater than 4 over 3

  5. 1 less than a less than 4 over 3

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F. Pratama

Master Teacher

Mahasiswa/Alumni Universitas Putra Indonesia YPTK Padang

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Pembahasan

S y a r a t space d a r i space s u a t u space f u n g s i space d e f i n i t space p o s i t i f space a d a l a h space colon  D less than 0 space d a n space a greater than 0  b squared minus 4 a c less than 0 b e r a r t i  left parenthesis 2 a right parenthesis squared minus 4 left parenthesis a minus 1 right parenthesis left parenthesis a plus 4 right parenthesis less than 0  4 a squared minus 4 left parenthesis a squared plus 3 a minus 4 right parenthesis less than 0  4 a squared minus 4 a squared minus 12 a plus 16 less than 0  minus 12 a plus 16 less than 0  minus 12 a less than negative 16  a greater than 16 over 12  a greater than 4 over 3  a minus 1 greater than 0  a greater than 1

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