Question

10Ana wants to multiply out the brackets in the expression 2(3a-1).She writes 2(3a-1)=6a - 1.Ana is wrong. Explain why.1Show Your WorkYou have responded to 9 of 10 questions

Answer 1

`2(3a-1)=6a-2`

Step by step explanation:

To multiply the expression 2(3a-1), we need to use the distributive property of multiplication which states that:

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

Then, for the expression 2(3a-1), the correct answer would be:

`\begin{gathered} 2(3a-1)=2\cdot3a-2\cdot1 \\ 2(3a-1)=6a-2 \end{gathered}`