Summary (Grade 12 NSC Matric Mathematics): Flashcards

Mathematical statements with variables, numbers, and operations

Terms with exactly the same variable parts

$(a + b)(c + d) = ac + ad + bc + bd$

Writing an expression as a product of its factors

$a^2 - b^2 = (a - b)(a + b)$

Expressions with three terms

$x = \frac{-b ± \sqrt{b^2-4ac}}{2a}$

Systems of equations solved together to find satisfying values

$\Delta = b^2 - 4ac$

Two distinct real roots