Question

What are the factors of 25x4 − 49y2?

Answer 1

i hope this helps you

Answer 2

Answer: The factors would be (5x²-7y)(5x²+7y).

Explanation:

Since we have given that

`25x^4-49y^2`

We just need to factorise the above expression.

So, we can rewrite it as :

`(5x^2)^2-(7y)^2`

Here, we can apply "a^2-b^2=(a+b)(a-b)":

Here, a = 5x²

b = 7y

So, it becomes

`(5x^2-7y)(5x^2+7y)`

Hence, the factors would be (5x²-7y)(5x²+7y).