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In elementary algebra, the binomial theorem (or binomial expansion) describes the algebraic expansion of powers of a binomial. According to the theorem, it is possible to expand the polynomial ( x + y ) n into a sum involving terms of the form ax b y c , where the exponents b and c are nonnegative integers with b + c = n , and the coefficient a ...
Binomial Theorem. A binomial is a polynomial with two terms. example of a binomial. What happens when we multiply a binomial by itself ... many times? Example: a+b. a+b is a binomial (the two terms are a and b) Let us multiply a+b by itself using Polynomial Multiplication : (a+b) (a+b) = a2 + 2ab + b2.
The binomial theorem states the principle for expanding the algebraic expression (x + y) n and expresses it as a sum of the terms involving individual exponents of variables x and y. Each term in a binomial expansion is associated with a numeric value which is called coefficient.
The Binomial theorem tells us how to expand expressions of the form (a+b)ⁿ, for example, (x+y)⁷. The larger the power is, the harder it is to expand expressions like this directly. But with the Binomial theorem, the process is relatively fast! Created by Sal Khan.
Jun 10, 2024 · The binomial theorem is a formula for expanding binomial expressions of the form (x + y) n, where ‘x’ and ‘y’ are real numbers and n is a positive integer. The simplest binomial expression x + y with two unlike terms, ‘x’ and ‘y’, has its exponent 0, which gives a value of 1. (x + y) 0 = 1.
The Binomial Theorem allows us to expand binomials without multiplying. See Example \(\PageIndex{2}\). We can find a given term of a binomial expansion without fully expanding the binomial.
The binomial theorem (or binomial expansion) is a result of expanding the powers of binomials or sums of two terms. The coefficients of the terms in the expansion are the binomial coefficients \( \binom{n}{k} \).
