Flashcards: Simplifying Polynomials

Choose the answer which best simplifies the following expression:

\displaystyle (10x^{2} + 5x - 5) + (3x^2 - 4x + 8)

\displaystyle 13x^2 + x + 3

\displaystyle 7x^2 + x + 3

\displaystyle 7x^2 + 5x - 3

\displaystyle 13x^2 + 5x - 3

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