Question

23. Which expression is NOT equivalent

Answer 1

Answer: [D] 2(36-12)

Step-by-step 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)

Answer 2

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)

    $\boldsymbol{2(36-12)}$

     $\boldsymbol{2(24)}$

     $\boldsymbol{48}$

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