MCQ
$(a + 2b + 3c) - (4a + 6b - 5c)$ is equivalent to:
- A$-4a - 8b − 2c$
- B$-4a - 4b + 8c$
- C$-3a + 8b - 2c$
- ✓$-3a - 4b + 8c$
✓
Answer
Correct option: D.
$-3a - 4b + 8c$
The value of $(a + 2b + 3c) - (4a + 6b - 5c)$
$\Rightarrow a + 2b + 3c - 4a - 6b + 5c$
$\Rightarrow -3a - 4b + 8c$
$\Rightarrow a + 2b + 3c - 4a - 6b + 5c$
$\Rightarrow -3a - 4b + 8c$
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