How to factorise x squared minus 16

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asked Nov 20, 2018 209k views

2 Answers

Mangara · Answer 1 · 2018-11-27T02:25:57+0000

Not sure if this is right but you could have:

x^2 - 4^2

If you simplify further:

it is also a difference of 2 squares giving you: (x + 4)(x - 4)

Therefore x = -4 or 4

How to factorise x squared minus 16

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