MCQ
$(5x^2 + 6x - 3) + (2x^2 - 7x - 9):$
- ✓$7x^2 - x - 12$
- B$7x^2 - 2x - 12$
- C$7x^2 - 3x - 12$
- DNone of the above
✓
Answer
Correct option: A.
$7x^2 - x - 12$
$\ \ \ \ 5\text{x}^{2} + 6\text{x} - 3\\ +2\text{x}^{2} - 7\text{x} - 9\\ ^\underline{ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ }\\\ \ \ 7\text{x}^{2} - \text{x} - 12$
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