Question

8. 36.8 = [11.5 – (2.5 X 3)]2

Answer 1

`[11.5-(2.5*3)]^2=16`

Explanation:

We want to evaluate
`[11.5-(2.5*3)]^2`

Let us evaluate within the parenthesis first:

`[11.5-(2.5*3)]^2=[11.5-(7.5)]^2`

`\implies [11.5-(2.5*3)]^2=[11.5-7.5]^2`

We again subtract within the bracket to obtain:

`[11.5-(2.5*3)]^2=[4]^2`

This finally gives us:

`[11.5-(2.5*3)]^2=16`