Jawaban:
Penjelasan dengan langkah-langkah:
= a(b . c)
= (a . b) + (a . c)
1.
= 2[x + 3]
= (2 . x) + (2 . 3)
= 2x + 6
2.
= 3x[y + 5]
= (3x . y) + (3x . 5)
= 3xy + 15x
3.
= -5[9 - y]
= (-5 . 9) + (-5 . -y)
= -45 + 5y
4.
= 9p[5p - 2q]
= (9p . 5p) + (9p . -2q)
= 45p^2 - 18pq
ALJABAR
2(x + 3)
= 2x + 2 × 3
3x(y + 5)
= 3xy + 5 × 3x
-5(9 -y)
= -5 × 9 + (-5 × -y)
-9p(5p -2q)
= -9p × 5p + (-9p × -2q)
= -45p² + 18pq
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Jawaban:
1. 2x + 6
2. 3xy + 15x
3. -45 + 5y
4. 45p^2 - 18pq
Penjelasan dengan langkah-langkah:
distributif
= a(b . c)
= (a . b) + (a . c)
1.
= 2[x + 3]
= (2 . x) + (2 . 3)
= 2x + 6
2.
= 3x[y + 5]
= (3x . y) + (3x . 5)
= 3xy + 15x
3.
= -5[9 - y]
= (-5 . 9) + (-5 . -y)
= -45 + 5y
4.
= 9p[5p - 2q]
= (9p . 5p) + (9p . -2q)
= 45p^2 - 18pq
ALJABAR
1.
2(x + 3)
= 2x + 2 × 3
= 2x + 6
2.
3x(y + 5)
= 3xy + 5 × 3x
= 3xy + 15x
3.
-5(9 -y)
= -5 × 9 + (-5 × -y)
= -45 + 5y
4.
-9p(5p -2q)
= -9p × 5p + (-9p × -2q)
= -45p² + 18pq