From the sum of a2−2ab+b2 and 2a2+2ab+b2 subtract the sum of a2−b2 and a2+ab+3b2 every 2 in this problem is meant to be a power of 2

Step-by-step explanation:

We need to find the sum of and first.

Adding +

Combining like terms, we get

-2ab+2ab = 0

Therefore,

.

Now, we need to find the sum of .

Adding .

Combining like terms, we get

.

Therefore,

Now, subtracting

.

Distributing minus sign over second parenthesis, we get

.

Combining like terms,

Therefore,

.

Therefore, the difference of the sum of + and is

idk

step-by-step explanation:

answer:   b

step-by-step explanation:

x2 = 16

x can not be a negative number because 16 is positive

the only answer would be positive 8