Question

Factor. 4x2−49y2 Enter your answer in the box.

Answer 1

`(2x-7)(2x+7)`

Explanation:

Use the identity rule:

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

To factor the given expression:

`4x^2-49y^2`

we can write this as:

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

Apply the identity rule we have;

`(2x-7)(2x+7)`

Therefore, the completely factor of the given expression is,
`(2x-7)(2x+7)`