to simplify the equation
It's the difference between multiplication and division. Multiplying binomials is combining them. Factoring polynomials is breaking them apart.
Combining like terms.
When multiplying numbers with exponents, you add the exponents.
Foil
multiplying
binomials
It is only not needed if you know of another method. If FOIL is the only way you know to multiply two binomials, then it is definitely needed.
A product of binomials refers to the result of multiplying two binomial expressions, which are algebraic expressions containing two terms. For example, multiplying ((a + b)) and ((c + d)) results in a new expression obtained through the distributive property, leading to (ac + ad + bc + bd). This process is often visualized using the FOIL method (First, Outer, Inner, Last) for binomials. The resulting expression is a polynomial that may have more than two terms.
To simplify the expression (11ww - 22) when multiplying monomials and binomials, you first recognize that it consists of a monomial (11ww) and a constant term (-22). If you were to multiply it by a binomial, such as ((x + y)), you would distribute each term in the binomial to both terms in the expression. For example, multiplying by ((x + y)) would yield (11ww \cdot x + 11ww \cdot y - 22 \cdot x - 22 \cdot y).
You don't need any acronym; just multiply every monomial on the left with every monomial on the right. The same goes for multiplying a binomial with a trinomial, two trinomials, or in fact for multiplying any polynomial by any other polynomial.
The same way that factoring a number is different from multiplying two factors. In general, it is much easier to multiply two factors together, than to find factors that give a certain product.
No, the product of two binomials is not always a trinomial; it is typically a trinomial when both binomials are of the form (ax + b)(cx + d) where at least one of the coefficients is non-zero. However, if either binomial includes a term that results in a cancellation or if both binomials are constants, the result could be a polynomial of a lower degree or a constant. For example, multiplying (x + 2)(x - 2) results in a difference of squares, yielding a binomial (x² - 4), not a trinomial.