Question

Factorise: y2 – 4
please friend ​

Answer 1

Answer:

Rewrite 4 as 22 . Since both terms are perfect squares, factor using the difference of squares formula, a2−b2=(a+b)(a−b) a 2 - b 2 = ( a + b ) ( a - b ) where a=y and b=2

Answer 2

Step-by-step explanation:

If you want to split

It's great

Hope you understand