Question

The value of the expression 4x² + 1/4y² + 1/9z² - 2xy + 1/3yz - 4/3zx when x= -1, y= -1/2 and z= 3, is​

Answer 1

Answer:

121/6

Step-by-step explanation:

4*1+1/4*1/4+1/9*9-2*-1*-1/2+1/3*-1/2*3-4/3*3*-1

4+1/16+1-1-1/2+4

8+1/16-1/2=128+1-8/16