Math Insight

Simplifying expressions

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  1. Simplify $- 4 b^{3} \left(2 b^{3} + 5\right) + 3 b^{3} \left(- 3 b^{2} - 1\right)$.

  2. Simplify $2 a \left(- 4 a^{2} + 5\right) - 2 a^{3} \left(- a - 3\right)$.

  3. Simplify $2 \left(x^{3} + 5\right) - 3 \left(2 x^{3} - 1\right)$.

  4. Simplify $\left(- 4 c + 5\right) \left(- 2 c^{2} - 3\right) + \left(- c + 4\right) \left(2 c^{2} - 4\right)$.

  5. Simplify $- 4 y^{3} - 5 y^{2} \left(5 y^{2} - 5 y\right)$.

  6. Simplify $2 \left(- 5 x^{3} + 5\right) + 2 \left(- 3 x^{3} - 3\right)$.

  7. Simplify $\left(2 x + 4\right) \left(- 4 x^{3} - 2\right) + \left(4 x - 3\right) \left(x^{3} + 3\right)$.

  8. Simplify $3 x^{2} \left(- 2 x^{3} + 3 x\right) + 5 x^{3}$.

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Elementary math, 2013-2014