Question

10) Evaluate, if x = 1, y = -2 and z = 3.
(i) 2xy - y2​

Answer 1

Answer:

0

Step-by-step explanation:

So first substitute the values in place of the variables.

2(1)(-2) - (-2)2

Now you solve it.

(2 x 1 x -2) - (-2 x 2)

-4 - -4

The - - will make it into a + sign

-4 +4

= 0