Oblicz wartości liczbowe sum( najpierw zredukuj wyrazy podobne :
n2+n-7+3n2-n+16= dla n = - 1/2
n 2 ( n do potęgi 2 )
3 n 2 ( 3 n do potęgi 2 )
- 1/2 = - jedna druga w ułamku .
Oblicz , a dostaniesz naj .
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n2 + n-7+3n2-n+16 n = -1/2
4n2+9 = 4* (-1/2)<kwadrat> +9 = 4*1/4+9=1+9=10