Hasil perkalian (2x + 6)(x - 3) adalah...
A.2x²+ 12x -18
B.2x²- 12x - 18
C.2x² - 18
D.x² - 18
A.2x²+ 12x -18
B.2x²- 12x - 18
C.2x² - 18
D.x² - 18
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Penjelasan dengan langkah-langkah:
= (2x + 6)(x - 3)
= 2x(x - 3) + 6(x - 3)
= 2x² - 6x + 6x - 18
= 2x² - 0 - 18
= 2x² - 18