Polynomials (AQA A-Level Mathematics): Flashcards

Reverse of expanding brackets, expressing as product of factors

$ax + ay = a(x + y)$

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

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

Multiply to $c$, add to $b$

When expression has four terms

$3x(2x + 3)$

$(x + 3)(x - 3)$

$(x + 3)^2$

Multiply $a imes c$