(2x - 3)(x + 5)
= (2x(x) + (2(5)x - (3(x) - (3(5)
= 2x² + 10x - 3x - 15
= 2x² + (10 - 3)x - 15
= 2x² + 7x - 15
Penjelasan dengan langkah-langkah:
(2x - 3) (x + 5)
= (2x . x) + ( 2x . 5) - (3 . x) + (3 . 5)
= 2x² + 10x - 3x + 15
= 2x² + 7x + 15
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(2x - 3)(x + 5)
= (2x(x) + (2(5)x - (3(x) - (3(5)
= 2x² + 10x - 3x - 15
= 2x² + (10 - 3)x - 15
= 2x² + 7x - 15
Penjelasan dengan langkah-langkah:
(2x - 3) (x + 5)
= (2x . x) + ( 2x . 5) - (3 . x) + (3 . 5)
= 2x² + 10x - 3x + 15
= 2x² + 7x + 15