Question

pls tell this answer WITH EXPLANATION
PLS I AM REALLY CONFUSED ​

Answer 1

Step-by-step explanation:

We have,

$f(x) = (x + 1)^{2} - (x - 1)^{2}$

$\implies \: f(x) = x^{2} + 2x + 1 - x^{2} + 2x - 1$

$\implies \: f(x) = 2x + 2x$

$\implies \: f(x) = 4x$

$\large{\sf{•\red{Hence,\:\:it\:\:is\:\:a\:\:linear\:\:function}}}$

Answer 2

Answer:

f(x)=(x+1)

2

−(x−1)

2

\begin{gathered} \implies \: f(x) = x^{2} + 2x + 1 - x^{2} + 2x - 1 \\ \end{gathered}

⟹f(x)=x

2

+2x+1−x

2

+2x−1

\begin{gathered} \implies \: f(x) = 2x + 2x \\ \end{gathered}

⟹f(x)=2x+2x

\begin{gathered} \implies \: f(x) = 4x \\ \end{gathered}

⟹f(x)=4x

Step-by-step explanation:

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