Mashaal Masha
Which expression is equivalent to $(2x^{2}-4)-(-3x^{2}+2x-7)$?
Difficulty: Easy
A: 

$5x^{2}-2x+3$

B: 

$5x^{2}+2x-3$

C: 

$-x^{2}-2x-11$

D: 

$-x^{2}-2x-11$

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