coramayg
coramayg
04-10-2018
Mathematics
contestada
factorise y^2 - 16
(y squared)
Respuesta :
gmany
gmany
04-10-2018
[tex]y^2-16=y^2-4^2=(y-4)(y+4)\\\\\text{used}\ a^2-b^2=(a-b)(a+b)[/tex]
Answer Link
Jerquindal
Jerquindal
04-10-2018
sqrt(y^2) = y
sqrt(16) = 4
-4y + 4y = 0
The answer is
(y-4)(y+4)
Answer Link
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