Question

Evaluate and simplify.... 63/3*2x(x-4)
for x =7

Answer 1

First, plug in x.

\[{63\over 3} \cdot 2(7)((7)-4)\]

Can you do the rest?

Answer 2

I can give it a shot, its the only way I will learn.... Just a quick second...

Answer 3

147?

Answer 4

Nope. Show your steps. Did you go from left to right?

\[{63\over 3}\ \cdot \ 2 \ \cdot \ (7) \ \cdot \ (7-4)\]

Answer 5

Yes, I did.. Ok let me look at this

Answer 6

I am still getting 147

Answer 7

\[ {63\over 3}\ \cdot \ 2 \ \cdot \ (7) \ \cdot \ (7-4) \\ = 21\ \cdot \ 2 \ \cdot \ (7) \ \cdot \ (7-4) \\ = 42 \ \cdot \ (7) \ \cdot \ (7-4) \\ = 294 \ \cdot \ (7-4) \\ = 294 \ \cdot \ 3 \\ = 882\]

Answer 8

I see.. I think the only way to work these problems is to learn how to properly work out the problems just like you just did. I thank you very much for helping me.