# FOIL ---- ## First- Outer- Inner- Last. $(a+b)(c+d)=\underbrace {ac}_{{\mathrm {first}}}+\underbrace {ad}_{{\mathrm {outside}}}+\underbrace {bc}_{{\mathrm {inside}}}+\underbrace {bd}_{{\mathrm {last}}}$ --- # Développer une expression ---- ## To expand an expression --- # La simple distributivité : $k(a+b)=ka+kb$ ---- ## The simple distributive [dɪˈstrɪbjətɪv] property [ˈprɒpəti]/law --- # La double-distributivité : $(a+b)(c+d)=ac+ad+bc+bd$ ---- ## The double distributive [dɪˈstrɪbjətɪv] property [ˈprɒpəti]/law --- # Développer pour se débarrasser des parenthèses ---- ## To multiply out brackets --- # Factoriser une expression ---- ## To factorise [ˈfæktəraɪz] an expression --- # Factoriser- mettre sous la forme d'un produit ---- ## To put brackets in --- # Expressions with irrational square roots in them : example : $\dfrac{3}{\sqrt{5}}$ ---- ## Surds <style> .slides {background-image:url("https://raw.githubusercontent.com/tremulotmaths/latex/master/von_koch_transparent.png");} .slides h1 {padding:2em; font-family:Arial; background-color:#133E29; opacity: 0.9;color:white; font-size:1em!important;} .slides h2 {background:#131750 ; opacity: 0.9;padding : 2em 0.2em; color:white; font-size:1em!important;} .slides h4 {margin-bottom:1.5em} </style>