সুন্দর অপেক্ষকীয় সমীকরণ


$f: \mathbb{R} \to \mathbb{R}$

$f(2x)=4f(x)-4x$

$f(2x+1)=4f(x)+3$

$f(69)=?$$


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Attempt 29


Solve 17


First Solve shahriaraminarif1234