Question

If a= 2, b=-2 , find value of a^2+b^2​

Answer 1

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a²+b²

2²+(-2)²

4+4

8

Answer 2

Answer: 8

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Given :

• a = 2
• b = -2

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To find :

• a² + b²

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Solution:

$\begin{gathered}\begin{gathered}: \implies \underline{ \boxed{\displaystyle \sf \bold{\: a²\: + \: b²}} }\\ \\\end{gathered}\end{gathered}$

$\begin{gathered}\begin{gathered}: \implies \displaystyle \sf \: 2² \: + \:(- 2)² \\ \\\end{gathered}\end{gathered}$

$\begin{gathered}\begin{gathered}: \implies \displaystyle \sf \: 2² \: + \:( -2 \: × \: -2 ) \\ \\\end{gathered}\end{gathered}$

Minus minus will be cancelled

$\begin{gathered}\begin{gathered}: \implies \displaystyle \sf \: 4\: + \: 4 \\ \\ \\\end{gathered}\end{gathered}$

$\begin{gathered}\begin{gathered}: \implies \underline{ \boxed{\displaystyle \sf \bold{ \: 8 ✓}} }\\ \\\end{gathered}\end{gathered}$

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