Question

find the sum of the following using column method.
1) a2+2ab+b2
plz help

Answer 1

Answer:

a2 + 2ab + b2 = (a + b)2. and. a2 - 2ab + b2 = (a - b)2. 2. To use: if the first and last terms of a trinomial are squares, try writing a perfect square; then use the square formula to see if you are correct

Step-by-step explanation:

Answer 2

Answer:

3a²+b²

Step-by-step explanation:

a²+2ab+b²

a²-2ab-b²

a²+ab+b²

=3a²+b²(as 2ab-2ab=0)