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Montano1993 [528]
2 years ago
10

Factorise y^2 - 16 (y squared)

Mathematics
2 answers:
cricket20 [7]2 years ago
8 0

y^2-16=y^2-4^2=(y-4)(y+4)\\\\\text{used}\ a^2-b^2=(a-b)(a+b)

Mila [183]2 years ago
3 0
Sqrt(y^2) = y
sqrt(16) = 4
-4y + 4y = 0
The answer is
(y-4)(y+4)
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