Penjelasan dengan langkah-langkah:
(3x - 4)(5 - 2x)
= 3x.5 - 3x.2x - 4.5 + 4.2x
= 15x - 6x² - 20 + 8x
= -6x² + 15x + 8x - 20
= -6x² + 23x - 20
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Penjelasan dengan langkah-langkah:
(3x - 4)(5 - 2x)
= 3x.5 - 3x.2x - 4.5 + 4.2x
= 15x - 6x² - 20 + 8x
= -6x² + 15x + 8x - 20
= -6x² + 23x - 20