anishaadhikari478 anishaadhikari478

20-07-2021
Mathematics

contestada

if x=(a+4 and y=(a-4),show that xy=a square -16

Respuesta :

kgfvlogs563 kgfvlogs563

20-07-2021

(a+4) (a-4)

according to formula,

x square - y square : (x+y) (x-y)

(a+4) (a-4)

xy : a square - 4

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