Gd yg mo cp :v ma sy - Universityku

$bf Hasil~dari~(2x + 3)(x - 2)~adalah$
a. 2x² – x – 6
b. 2x² + x – 6
c. 2x² + 7x – 6
d. 2x² – 7x – 6

Gd yg mo cp :v ma sy

Jawaban:

~Aljabar

(2x + 3)(x – 2)

= (2x × x) – (2x × 2) + (3 × x) – (3 × 2)

= 2x² + 4x + 3x – 6

= 2x² – 7x – 6 (A)

» Aljabar

$~$

(2x + 3)(x – 2)

= (2x)(x) – (2x)(2) + (3)(x) – (3)(2)

= 2x² – (2x)(2) + (3)(x) – (3)(2)

= 2x² – 4x + (3)(x) – (3)(2)

= 2x² – 4x + 3x – 6

= 2x² + (-4 + 3)x – 6

= 2x² + (-1)x – 6

= 2x² – x – 6