Explain the difference between 2x3  and (2x)3.

The question as described means 3 is an exponent.

The difference between 2x³ and (2x)³ lies in the absence and presence of parenthesis respectively.

The term 2x³ can be rewritten as;

2 × x³.

The term (2x)³ on the other hand can be rewritten as;

2³ × x³.More simply, becomes; 8x³.

Ultimately, the presence of parenthesis denotes that all mathematical elements within the parenthesis are affected by the exponent.

Read more on parenthesis and exponents:

link

I assume the 3 is an exponent.

Yourself by using the internet

38+105= 143, 39+104=143, and you will find then adding the numbers on opposite sides, moving inwards yields the answer 138 every time. because of this, you’re going to multiply 138 times the number of pairs, which is 34. therefore, 34*138= 4692(i’m sorry if it’s the wrong numbers, but it’s the right concept)