marklee99 marklee99

02-01-2020
Mathematics

contestada

help me solve this
4 — (x-2) (x+2)

Respuesta :

02-01-2020

Using [tex](x-a)(x+a)=x^2-a^2[/tex] to obtain

[tex]4-(x^2-4)=4-x^2+4=8-x^2[/tex]

Hope this helps.

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