Question

answer with explanation ​

Answer 1

Answer:

answer is in the attachment

Answer 2

Answer:

3x^2 + 2xy - y^2

Step-by-step explanation:

The sum of two algebraic equation is 4x^2 + 4xy - y^2.

Algebraic equations are linear equations where an unknown quantity could be find out by solving the equation.

In the sum, one of the algebraic equation is given , which is x^2 + 2xy.

So let us consider the second algebraic term be z.

Now, to make the problem skill easy, let us take 4x^2 + 4xy - y^2 as b and x^2 + 2xy as c.

Hence according to the problem,

z = b-c

Now putting the values of b and c:

4x^2 + 4xy - y^2 - x^2 - 2xy

=3x^2 +2xy - y^2. [by solving the equation]

Hence the second term is 3x^2 +2xy - y^2.