In math, expanded form can refer to any type of expression, equation or notation that is completely broken down into its individual parts. Expanded form is commonly used in teaching students place value and factoring.
Know MoreIn discussion of place value, expanded form is when a number is broken down into each place value with an addition sign placed between each number. For example, 356 would be 300+50+6 in expanded form. When an expression is factored, it changes the expression into expanded form. x^{2}-4 would factor into the expanded form of (x-2)(x+2). The expanded form of quadratic equations is often more useful in graphing than the standard form.
Learn more in AlgebraA constant in math is a fixed value. It may be a number on its own or a letter that stands for a fixed number in an equation.
Full Answer >A scale in mathematics refers to the ratio of a drawing in comparison to the size of the real object. A ratio is a relative size that represents typically two values. For example, 1:3 pears and grapefruits represents that there is one pear for every three grapefruit.
Full Answer >Elimination in mathematics refers to the elimination method, also called the addition method, which is used to solve basic algebraic problems by comparing two equations in order to find what their variables equal. This method uses two equations to cancel out a variable in one of the equations.
Full Answer >A coefficient, in math, refers to the number that precedes a letter variable. For example, in the term 4*x, the coefficient is equal to 4, while the variable is "x." If a number is not attached to a variable through a multiplication operator, it is simply called a constant.
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