GMAT: Manipulating Algebraic Expressions Quiz
Quiz Overview
Description
Manipulating algebraic expressions is an import concept found throughout the GMAT exam - not only in the Algebraic sections but in solving geometric problems as well. Below are several factoring formulas that will be helpful.
a2 - b2 | = | (a + b)(a - b) |
a2 + 2ab + b2 | = | (a + b)(a + b) |
a2 - 2ab + b2 | = | (a - b)(a - b) |
a3 + b3 | = | (a + b)(a2 - ab + b2) |
a3 - b3 | = | (a - b)(a2 + ab + b2) |
a3 + 3a2b + 3ab2 + b3 | = | (a + b)3 |
a3 - 3a2b + 3ab2 - b3 | = | (a - b)3 |