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Find the sum of [tex][tex]$a^2 + b^2$[/tex][/tex] and [tex][tex]$a^2 - b^2$[/tex][/tex].

Sagot :

Let's break down and solve the problem step-by-step using algebraic techniques:

1. Identify the expressions:
- The first expression to consider is [tex]\(a^2 + b^2\)[/tex].
- The second expression to consider is [tex]\(a^2 - b^2\)[/tex].

2. Combine the expressions:
- We are required to find the sum of the two expressions: [tex]\(a^2 + b^2\)[/tex] and [tex]\(a^2 - b^2\)[/tex].

3. Write down the sum of the expressions:
[tex]\[ (a^2 + b^2) + (a^2 - b^2) \][/tex]

4. Simplify the expression:
- Notice that when you add [tex]\(b^2\)[/tex] and [tex]\(-b^2\)[/tex], they cancel each other out.
- So the simplified form of the expression would just be:
[tex]\[ a^2 + b^2 + a^2 - b^2 = a^2 + a^2 = 2a^2 \][/tex]

5. Result:
- Thus, the result of adding [tex]\(a^2 + b^2\)[/tex] and [tex]\(a^2 - b^2\)[/tex] is:
[tex]\[ 2a^2 \][/tex]

To consolidate:
- The sum of [tex]\((a^2 + b^2)\)[/tex] and [tex]\((a^2 - b^2)\)[/tex] simplifies to [tex]\(2a^2\)[/tex].

Hence, summing [tex]\(a^2 + b^2\)[/tex] and [tex]\(a^2 - b^2\)[/tex] gives us [tex]\(2a^2\)[/tex].