To multiply monomials, multiply the coefficients (the numbers that come before the variables) of each term, add the exponents of like variables, and multiply the different variables together.

(4a)(6ab) - (2a²)(2b)
(4 x 6)(a x a x b) - (2 x 2)(a² x b)
(24)(a¹⁺¹ x b) - (4)(a²b)
24a²b - 4a²b
20a²b

A monomial contains one term, a binomial contains two terms, and a polynomial contains more than two terms.

To multiply monomials, multiply the coefficients (the numbers that come before the variables) of each term, add the exponents of like variables, and multiply the different variables together.

(8a)(8ab) + (8a²)(6b)
(8 x 8)(a x a x b) + (8 x 6)(a² x b)
(64)(a¹⁺¹ x b) + (48)(a²b)
64a²b + 48a²b
112a²b

To combine like terms, add or subtract the coefficients (the numbers that come before the variables) of terms that have the same variable raised to the same exponent.

9a³ - 5a³ = 4a³

A quadrilateral is a shape with four sides. The perimeter of a quadrilateral is the sum of the lengths of its four sides.