Simplifying Algebraic Expressions (Leaving Cert Mathematics): Flashcards

Math phrase with numbers, letters, operations (no equals sign)

Parts separated by plus or minus signs

Letters ($x$, $y$, $z$) representing unknown values that change

Plain numbers whose values never change

Numbers that multiply the variables

Terms with exactly same variables & exactly same powers

Only like terms may be added or subtracted

Collect & combine like terms: add/subtract coefficients

Multiply everything inside brackets by what's outside

$a(b + c) = ab + ac$

The coefficient is understood to be $1$

Different powers: $x^2$ versus $x^1$