no1 (4×+5) (×-4)
no2(6×-2) (7×-3
no3 (16×-2) (4×+3)
no4 (12×+4) (7×-5)
no5 (15+-7) (15+-6)
no6 (8×-6) (15+-10)
no7 (14×-5) (-6×-4)
no8 (-10×+4) (-6×-5
minta tolong dong kak
kerjakan soal sya kak
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no2(6×-2) (7×-3
no3 (16×-2) (4×+3)
no4 (12×+4) (7×-5)
no5 (15+-7) (15+-6)
no6 (8×-6) (15+-10)
no7 (14×-5) (-6×-4)
no8 (-10×+4) (-6×-5
minta tolong dong kak
kerjakan soal sya kak
Jawab:
Penjelasan dengan langkah-langkah:
1. (4x + 5)(x - 4)
= 4x(x -4) + 5(x-4)
= 4x² - 16x + 5x - 20
= 4x² - 11x -20
2. (6x - 2)(7x - 3)
= 6x(7x -3 ) - 2(7x - 3)
= 42x² - 18x - 14x +6
= 42x² - 32x + 6
3. (16x - 2)(4x+3)
= 16x(4x + 3) - 2(4x + 3)
= 64x² + 48x - 8x - 6
= 64x² + 40x - 6
4. (12x +4)(7x - 5)
=12x(7x -5) + 4(7x - 5)
= 84x² - 60x + 28x - 20
= 84x² - 32x - 20
5. (15 + (-7))(15 + (-6))
= 8 x 9 = 72
6. (8x - 6)(15 + (-10))
= 5(8x -6) = 40x - 30
7. (14x - 5)(-6x - 4)
= 14x(-6x - 4 ) - 5(-6x - 4)
= -84x² - 56x + 30x + 20
= -84x² - 26x +20
8. (-10x + 4)(-6x - 5)
= -10x(-6x -5) + 4(-6x - 5)
= 60x² + 50x -24x - 20
= 60x² + 26x - 20
[answer.2.content]
