2006-11-14 13:24:01 · 5 answers · asked by Ken H 1 in Science & Mathematics ➔ Mathematics
An expression is a combination of numbers, operators, grouping symbols (such as brackets and parentheses) and/or free variables and bound variables arranged in a meaningful way which can be evaluated. 5+4 and 1/x+3 are both expressions.
Whereas an equation is a mathematical statement that sets two expressions equal to each other; 2x-9=3x+17 is an example of an equation.
2006-11-14 13:33:01 · answer #1 · answered by SomeGuy 6 · 0⤊ 0⤋
An equation is comprised of expressions except they are called terms when in an equations and it contains and equals sign. There are always two sides of and equation with terms (expressions).
Example: 2x^2 + 3x + 56 = 0 is an equation because it has an equals sign with terms on both sides. You can think of each term of an equation as an expression put them all together and they form an equation.
2006-11-14 13:54:12 · answer #2 · answered by ikeman32 6 · 0⤊ 0⤋
An equation shows an equality (Hence the name and the 'equals' sign)
e.g. 2x+5=0
An expression will not have the '='
e.g. 2x+5
Hence there is no way to 'solve' an 'expression' unless you have the values of the unknown terms.
2006-11-14 13:32:47 · answer #3 · answered by wilkes_in_london 3 · 0⤊ 0⤋
To put it simply, equations have equal signs, and expressions do not.
2006-11-14 13:27:52 · answer #4 · answered by dennismeng90 6 · 0⤊ 0⤋
an equation has an equal sign, an expression doesnt.
2006-11-14 13:26:02 · answer #5 · answered by L 4 · 0⤊ 0⤋