Question
Simplify the following algebraic expressions by removing grouping symbols.
$x^2-\left[3 x+\left\{2 x-\left(x^2-1\right)\right\}+2\right]$
$x^2-\left[3 x+\left\{2 x-\left(x^2-1\right)\right\}+2\right]$
✓
Answer
$2 x^2-5 x-3$
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