Question

6. Sheila simplified an expression using the following steps. Which property justifies Step 3?

Answer 1

The distributive property of multiplication is represented by the following expression:

`a\cdot(b+c)=a\cdot b+a\cdot c`

Notice that Sheila uses distributive property to simplify the expression:

`\begin{gathered} 5x+4(3+2x) \\ =5x+4\cdot3+4\cdot2x \\ =5x+12+8x \\ =13x+12 \end{gathered}`