Mathematics · Algebra
Simplify the following expression: x 2 - 2x - 63 x 2 + 14x + 49
- 1x - 9 x + 7✓
- 2x + 7 x - 7
- 3x - 7 x + 7
- 4x + 9 x + 7
Correct answer
x - 9 x + 7
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