tolong dijawab secepatnya
Jawaban:
b-c
1. 5 - 4 = 1
2. 6 - (-3) = 6 + 3 = 9
3. (-7) - 2 = -9
4. (-8) - (-1) = (-8) + 1 = -7
a×(b-c)
1. 1 × (5-4) = 1 × 1 = ¹
2. -2 × {6 - (-3)} = -2 × {6 + 3} = -2 × 9 = -18
3. 3 × {(-7) - 2} = 3 × (-9) = -27
4. -4 × {(-8) - (-1)} = -4 × {(-8) + 1} = -4 × -7 = 28
a×b
1. 1 × 5 = 5
2. -2 × 6 = -12
3. 3 × (-7) = -21
4. -4 × -8 = 32
a×c
1. 1 × 4 = 4
2. -2 × (-3) = 6
3. 3 × 2 = 6
4. -4 × (-1) = 4
(a×b) - (a×c)
1. (1 × 5) - (1 × 4) = 5 - 4 = 1
2. (-2 × 6) - (-2 × -3) = -12 - 6 = -18
3. (3 × -7) - (3 × 2) = -21 - 6 = -27
4. (-4 × -8) - (-4 × -1) = 32 - 4 = 28
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