Question

4. Answer the following.
a. Evaluate c + 18c + 81, if c = 2.
b. Evaluate z2 – 20z + 100, if z = -1.

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Answer 1

May be it can help you

Answer 2

Answer:

(a- 119                     (b- 119

Step-by-step explanation:

(a- If,    c = 2

Then,    c + 18c + 81  becomes :

= (2) + 18(2) + 81.

= 2 + 36 + 81.

= 38 + 81.

= 119.

(b- If,  z=1

Then,   z^2 - 20z + 100  becomes :

= (1)^2 - 20(1) + 100.

= 1 - 20 + 100.

= 1 - 120.

= 119.

I HOPE THIS MAY HELP YOU .