Question

Urgenteeeeeeeeeeeeeeeeeeeeeeeeeeeeee

o resultado da expressao (2x^2/3 - x^2/9)-4 .5x^2/12


PRECISO DESSA AJUDA PRA AGORA GALERA , VALENDO 16 PONTOS

Answer 1

$\left( \dfrac{2x^2}{3} - \dfrac{x^2}{9} \right) -4 \cdot \dfrac{5x^2}{12} \\\\\\\left( \dfrac{6x^2}{9} - \dfrac{x^2}{9} \right) -4 \cdot \dfrac{5x^2}{12} \\\\\\\left( \dfrac{6x^2 - x^2}{9} \right) -4 \cdot \dfrac{5x^2}{12} \\\\\\\dfrac{5x^2}{9}-4 \cdot \dfrac{5x^2}{12} \\\\\\\dfrac{5x^2}{9}-\dfrac{5x^2}{3} \\\\\\\dfrac{5x^2}{9}-\dfrac{15x^2}{9} \\\\\\\dfrac{5x^2 - 15x^2}{9} = - \dfrac{10x^2}{9}$