Question

Factorise x2 – 16 please help​

Answer 1

Answer:

There are two ways to factorize x2−16 - one using identity a2−b2=(a+b)(a−b) . Other method is by splitting the middle term, which is 0 here and as product of coefficient of x2 and constant term is −16 . we need to do is to split middle term in 4 and −4 (as their sum is zero and product is −16 )

Step-by-step explanation:

hope it helps u

Answer 2

Answer:

x²-16

=x²=16

x=√16

x=4.

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