Question

(a2+b2 +c2) (b2+c2+d2)=(ab+bc+cd)2

Answer 1

Answer:

If asked why to the following question here is the explanation

Step-by-step explanation:

we can take 2 as common.

Next we can take 2 value from braket on by one then it will be : ab , bc , cd .

It's comman to take + sign.

So the whole equation will be

(ab+bc+cd)2