Answer :
The cubic binomial expression with a positive leading coefficient is 1+2x^3
How to determine the cubic binomial expression?
A cubic binomial expression has the following properties:
- It has 2 terms
- One of its variable term has a power of 3
This means that a cubic binomial expression is represented as:
ax^3 + b or b + ax^3
From the question, we understand that it has a positive leading coefficient.
This means that:
a > 0
From the list of options, we have:
1+2x^3
Hence, the cubic binomial expression with a positive leading coefficient is 1+2x^3
Read more about binomial expressions at:
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