Question

Evaluate x2 + yz for x = 5, y = -3 and z = 2. Show each step of your work.

and if you can, simplify 2(x + 4) + 7(x – 5) + 3. Show each step of your work.

Answer 1

Hello there!

Question #1: Evaluate x2 + yz for x = 5, y = -3 and z = 2. Show each step of your work.

`(5*2)+(-3*2) \\ - \downarrow----\downarrow-\\ \ \ (10)---(-6) \\ 10+-6=\bf4`

Answer: 4

Question #2: and if you can, simplify 2(x + 4) + 7(x – 5) + 3. Show each step of your work.

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