A polynomial with 4 terms is called a quadrinomial. Polynomials are algebraic expressions that consist of variables and coefficients, combined using addition, subtraction, multiplication, and non-negative integer exponents. The number of terms in a polynomial determines its specific name.
For example, the polynomial 3x^3 + 2x^2 - 5x + 7 is a quadrinomial because it has four terms: 3x^3, 2x^2, -5x, and 7.
Understanding the terminology of polynomials is essential in algebra, as it helps in identifying and solving various types of equations. Quadrinomials, like other polynomials, can be simplified, factored, or solved depending on the context of the problem.