The second one orate 3rd one
<span>(a^2+b^2)^2
since (a+b)^2=a^2+2ab+b^2, substitute a with a^2 and b with b^2, which yields:
a^4+2(a^2*b^2)+b^4</span>
Answer:
I think its the 1st one, but I'm not sure
Answer:
You know that you can look it up then you can see the answer right away
Step-by-step explanation:
:)