86
punti
Livello 1
$5a^3 : \left(\dfrac{5}{3}a\right) -3a·(2a) -4a^2b : \left(3b\right) -6·\left(a\right)^2 =$
$= \cancel5^1a^3·\dfrac{3}{\cancel5_1a} -6a^2-4a^2\cancel{b}·\dfrac{1}{3\cancel{b}}-6a^2 =$
$= 3a^{(3-1)} -6a^2-\dfrac{4}{3}a^2-6a^2 =$
$= 3a^2 -6a^2-\dfrac{4}{3}a^2-6a^2 =$
$= \left(3-6-\dfrac{4}{3}-6\right)a^2 =$
$= \left(-9-\dfrac{4}{3}\right)a^2 =$
$= \left(\dfrac{-27-4}{3}\right)a^2 =$
$= -\dfrac{31}{3}a^2$
54128
punti
Genius I
