Question

Evaluate each expression if x=2,y=-3 and z=1

Answer 1

5) 26

6) 18

Explanation:

Substitute the value of the variables in the expression and evaluate.

x = 2 ; y = -3 and z = 1

Absolute value: Absolute value of a real number is the non negative a value of x without regard its sign.

Example: I-3I = 3

I 3I = 3

5) 24 + Ix - 4I =24 + I 2 - 4I

= 24 + I-2I

= 24 + 2

= 26

6) 13 + I 8 +y I = 13 + I 8 + (-3)I

= 13 + I 5 I

= 13 + 5

= 18