Pelajaran aljabar apa isinya dari
1. [13 a - 8 b]+[12 a + 9 b]
2. [15 i +14 b + 13 k] + [-31 -45 j + 51 k}
3. [42n + 35m +7] -[50m - 20n +9]
1. [13 a - 8 b]+[12 a + 9 b]
2. [15 i +14 b + 13 k] + [-31 -45 j + 51 k}
3. [42n + 35m +7] -[50m - 20n +9]
darmawanrizki3
1.156a2 + 117 ab-96 ab - 72b2= 156a2 +21 ab- 72 b2
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