Question

3X-8Y ELEVADO A 2 (X) IGUAL A 1/2 E (Y) ELEVADO A 2 É 1/3​

Answer 1

Resposta:

$3x-8y^2~~~com~~x-{1\over2}~~~e~~~y={1\over3}\\ \\ 3.({1\over2})-8({1\over3})^2=\\ \\ {3\over2}-8({1\over9})=\\ \\ {3\over2}-{8\over9}=\\ \\ mmc(2,9)=18\\ \\ {27-18\over18}={9\over18}={1\over2}=0,5$