Question

factorise for the following :
a4 + b4 - 7a²b².


need help please give me proper answer please ​

Answer 1

Step-by-step explanation:

a⁴+b⁴+2a²b² -9a²b²

(a²+b²) -(3ab)²

(a²+b²-3ab)²

(a²+b²+3ab)(a²+b²-3ab)

Answer 2

Answer:

You can check the solve in this photo.

Step-by-step explanation:

I have solved the problem step-by-step. Hope, you are helped and please mark the answer as brainliest. Stay safe in this pandemic situation.