Exercise 69

Simplify the following expressions if possible.

  1. \(\displaystyle{ {2a^{2}+4a^{2}}=}\)

  2. \(\displaystyle{ (2a^{2})(4a^{2})=}\)

  3. \(\displaystyle{ {2a^{2}+4a}=}\)

  4. \(\displaystyle{ (2a^{2})(4a)=}\)

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