Question

Factorize
please
help
me


`a {}^(2) - 4b {}^(4)`
​

Answer 1

`(a+2b^(2) )(a-2b^2)`

Explanation:

You have what is called "perfect squares" so you can use the "difference of squares formula to factor:

`a^2-b^2=(a+b)(a-b)`

So,

`a^2-(2b^2)^2`

you can work the equation backward now and you will get your original equation.