Question

(s+t)²+(s-t)² factorise ​

Answer 1

Answer:

The answer is:

Step-by-step explanation:

Take s + t as a and s - t as b

So use the formula a^2 - b^2

So it gives ( a + b ) ( a - b )

( s + t + s - t ) ( s + t - s + t )

It gives 2s x 2t

This gives 2 ( s + t )

Pls mark it as brainliest