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33 votes
33 votes
The answer is the red just show me how to do itbystep by step

The answer is the red just show me how to do itbystep by step-example-1
User Spencer Alger
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1 Answer

8 votes
8 votes

Simplify the expressions:

1)


3√(3)-√(3)=√(3)\cdot(3-1)=√(3)\cdot2=2\cdot√(3)

2)


\begin{gathered} 3\cdot√(20)+3\cdot√(45)=3√(4\cdot5)+3\cdot√(9\cdot5)=3√(4)√(5)+3√(9)√(5) \\ 3\cdot2\cdot√(5)+3\cdot3\cdot√(5) \\ 6√(5)+9√(5) \\ 15√(5) \end{gathered}

3)


\begin{gathered} -3√(54)-3√(6) \\ -3√(9\cdot6)-3√(6) \\ -3√(9)√(6)-3√(6) \\ -3\cdot3\cdot√(6)-3√(6) \\ -9√(6)-3√(6) \\ -12√(6) \end{gathered}

4)


\begin{gathered} -2√(6)-2√(6) \\ (-2-2)√(6) \\ -4√(6) \end{gathered}

User Gerrit Zijlstra
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