Question

23. Which expression is NOT equivalent

to the expression 38 – 14?
A 2(19-7)
B 24
C (19-7)2
D 2(36-12)

Answer 1

Hi :)

Let's evaluate all these expressions

———————

`\boldsymbol{\boxed{38-14=24}}}`

So Now the question boils down to --

What expression is NOT equivalent to
`\boldsymbol{24?}`

• Option (A).

`\boldsymbol{2(19-7)}`

`\boldsymbol{2(12)}`

`\boldsymbol{24}`

Option (A) is ruled out, because we're looking for expressions that are not equivalent to 24.

• Option (B)

Well 24 is always equal to 24!

• Option (C)

`\boldsymbol{(19-7)2}`

`\boldsymbol{(12)2}`

`\boldsymbol{24}`

• Option (D)

`\boldsymbol{2(36-12)}`

`\boldsymbol{2(24)}`

`\boldsymbol{48}`

`\tt{Learn\;More;Work\;Harder}`

:)

Answer 2

Answer: [D] 2(36-12)

Explanation:

First, we will simplify the given expression.

38 – 14 = 24

Now, we will see if the other expressions are equivalent or not.

[A] 2(19-7) = 24

[B] 24 = 24

[C] (19-7)2 = 24

[D] 2(36-12) = 48

The expression is NOT equivalent to the expression 38 – 14 is;

[D] 2(36-12)