Choose the correct classification of 5x + 2x² - 8 by number of terms and by degree.
Third degree polynomial
Fourth degree trinomial
Second degree trinomial
Sixth degree polynomial

Solution:

Given:

"A polynomial is a type of expression in which the exponents of all variables should be a whole number".

They are used to express numbers in almost every field of mathematics and are considered very important in certain branches of math, such as Calculus.

For example, 2x + 9 and x² + 3x + 11 are polynomials. 

Polynomial is 5x + 2x² - 8

The degree of the expression is the highest power of the variable which is given in the expression.

In this expression the highest power of x is 2.

So it is a second degree expression.

A trinomial is an expression that has three terms.

The expression has three terms i.e. 5x, 2x² and 8 it is a trinomial.

Therefore, the expression is a second degree trinomial.

Choose the correct classification of 5x + 2x² - 8 by number of terms and by degree.

Summary:

The expression 5x + 2x² - 8 by number of terms and by degree is a second degree trinomial.