EXPAND IN MATH:
expansion - a function expressed as a sum or product of terms; "the expansion of (a+b)^2 is a^2 + 2ab + b^2". math, mathematics, maths - a science (or group of related sciences) dealing with the logic of quantity and shape and arrangement.
( x + 2 ) ( x + 11 ) (EXPAND):
1) USE THE FOIL METHOD: (A+B)(C+D)=AC+AD+BC+BD
X² + 11X + 2X + 22
2) COLLECT LIKE TERMS
X² + (11X + 2X) + 22
3) SIMPLIFY
X² + 13X + 22
