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How do you know when to add or subtract when doing the distributive property for (2-6s)(-5)

User Joels Elf
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1 Answer

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(2-6s)(-5)=30s-10_{}

Here, we want to use the distributive property

To use this, the operator at the middle of the two initial terms will tell us the sign to use

Looking at the first expression, we can see a negative sign between 2 and -6s

Thus, in this case, when using the distributive property, we proceed as follows;


\begin{gathered} (2-6s)(-5)\text{ = (2}*(-5))\text{ - (6s}*(-5)) \\ =\text{ -10 - (-30s)} \\ =\text{ -10 +30s = 30s-10} \end{gathered}

User Raz Omessi
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