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x-2-x-2-




Question Number 64396 by rachelleazarcon last updated on 17/Jul/19
(x+2)(x−2)
$$\left(\mathrm{x}+\mathrm{2}\right)\left(\mathrm{x}−\mathrm{2}\right) \\ $$
Answered by MJS last updated on 17/Jul/19
are you serious?  study these formulas  (a+b)^2 =a^2 +2ab+b^2   (a−b)^2 =a^2 −2ab+b^2   (a+b)(a−b)=a^2 −b^2
$$\mathrm{are}\:\mathrm{you}\:\mathrm{serious}? \\ $$$$\mathrm{study}\:\mathrm{these}\:\mathrm{formulas} \\ $$$$\left({a}+{b}\right)^{\mathrm{2}} ={a}^{\mathrm{2}} +\mathrm{2}{ab}+{b}^{\mathrm{2}} \\ $$$$\left({a}−{b}\right)^{\mathrm{2}} ={a}^{\mathrm{2}} −\mathrm{2}{ab}+{b}^{\mathrm{2}} \\ $$$$\left({a}+{b}\right)\left({a}−{b}\right)={a}^{\mathrm{2}} −{b}^{\mathrm{2}} \\ $$

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