Question

Evaluate theexpression belowwhen x = = 3.<54 : 2.3 - 22Enter your answer inthe box below.

Answer 1

The given expression is

`54(.)/(.)2*3-x^2`

where x=3

the dot in the expression means multiplication

substitute into the expression above we have

`\begin{gathered} 54(.)/(.)2*3-3^2 \\ \end{gathered}`

Applying BODMAS

`27*3-3^2`
`\begin{gathered} 81-3^2 \\ 81-9 \\ 72 \end{gathered}`

Therefore the value of the expression is 72