Salut,
[tex]a=2\cdot f\left(\dfrac{1}4\right)+g\left(\dfrac{1}4\right)=2\cdot\left(6-\dfrac{1}4\right)+\left(2\cdot\dfrac{1}4-6\right)=\\\\=2\cdot\dfrac{23}{4}+\dfrac{1}2-6=\dfrac{23}2+\dfrac{1-12}{2}=\dfrac{24-12}2=\dfrac{12}2=6.[/tex]
Deci a = 6.
Ai înțeles rezolvarea ?
Green eyes.
