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.

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asked Jun 1, 2019 78.7k views

1 Answer

Ritesh Mathur · Answer 1 · 2019-06-05T04:45:31+0000

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.