Example

3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b

Question

$$kn^{2}-3n+5$$

Evaluate

$kn^{2}-3n+5$

Differentiate w.r.t. k

$n^{2}$

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