Answer :

ouff2003

Step-by-step explanation:

NOTE :

(a+b) (a-b) = a² - b²

NOTE :

[tex]\huge \frac{a}{b} = \frac{a \times c}{b \times c} [/tex]

and look at the picture ......

${teks-lihat-gambar} ouff2003
${teks-lihat-gambar} ouff2003

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