4 n2 = 22 n2 = (2 n) (2 + n) – – – 9x2 25y2 = (3x)2 (5y)2 – – = (3x + 5y)(3x 5y) – Difference of Squares (Model) a2 b2 = (a + b)(a b) – –
4 – n2 = 22 – n2 = (2 – n) (2 + n) 9x2 – 25y2 = (3x)2 – (5y)2 = (3x + 5y)(3x – 5y) Difference of Squares (Model) a2 – b2 = (a + b)(a – b)
alg-1-vocab-cards-2016.docx