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⇒ ( 8a + 3 )( 8a - 3 )
Penjelasannya :
( 8a + 3 )( 8a - 3 )
= - 24a + 24a - 9
= - 9
2.
⇒ ( 5p + 4q )( 5p - 4q )
Penjelasannya :
( 5p + 4q )( 5q - 4p )
=
=
3. 49 -
⇒ ( 7 + p )( 7 - p )
Penjelasannya :
( 7 + p )( 7 - p )
=
= 49 -
4.
⇒ ( p - 2 )( p - 2 )
Penjelasannya:
( p - 2 )( p - 2 )
= - 2p - 2p + 4
= - 4p + 4
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