Question

calcule o valor numérico de 2x+y/3-yx

Answer 1

a) 2x+(y/3)-yx

2*(-2)+(1/3)-1*(-2)

-4+(1/3)+2

-2+1/3

-6+1/3

-5/3

b) 2x+(y/3)-yx

2*0+(1/3)-1*0

0+(1/3)-0

1/3

c) 2x+(y/3)-yx

2*(1/4)+(-18/3)-(-18)*(1/4)

2/4+(-6)+18/4

1/2-6+9/2

1-12+9/2

-2/2

-1

d) 2x+(y/3)-yx

2*(-1/2)+(6/3)-6*(-1/2)

-2/2+2+6/2

-1+6+3

-1+9

8

Espero ter ajudado!