Foiling Equations Flashcards
1
Q
(a - b)(a + b) = ?
A
a^2 - b^2
2
Q
(a + b)^2 = ?
A
a^2 + 2ab + b^2
3
Q
(a - b)^2 = ?
A
a^2 - 2ab + b^2
GRE Algebra > Foiling Equations > Flashcards
(a - b)(a + b) = ?
a^2 - b^2
(a + b)^2 = ?
a^2 + 2ab + b^2
(a - b)^2 = ?
a^2 - 2ab + b^2