Factorising and Manipulation of Formulae (Junior Cert Mathematics): Flashcards

Breaking down expressions into factors that multiply together

HCF, Grouping, Difference of Two Squares, Quadratic Trinomials

Biggest common factor in all terms

When expression has four terms

$a^2 - b^2$

$(a - b)(a + b)$

$ax^2 + bx + c$

Find two numbers: multiply to $ac$, add to $b$

Always check for HCF first

Minus sign between two squares

Positive

Negative