S.Q
(Perkalian)
==========
(8 + 2x) . (5x - 7) =....
Selamat Hari Raya Idul Fitri 1443 H all
(Perkalian)
==========
(8 + 2x) . (5x - 7) =....
Selamat Hari Raya Idul Fitri 1443 H all
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Pembahasan :
Jawaban:
10x² + 26x - 56
Penjelasan dengan langkah-langkah:
= ( 8 + 2x ) . ( 5x - 7 )
= 8.5x - 8.7 + 2x.5x - 2x.7
= 40x - 56 + 10x² - 14x
= 10x² + 40x - 14x - 56
= 10x² + 26x - 56