Question

This question never got answered and I would appreciate it if someone could take a look at it.

Simplify

12(6^/(5^-4^) + 7

My thoughts

12(36/(5^-4^) + 7

12(36/9) + 7

12 (4) + 7

12 * 11

132
Algebra - Steve, Saturday, August 23, 2014 at 11:49pm
Your notation is weird.

5^-4 = 1/5^4 = 1/625

No idea what 5^-4^ means, or 6^/...
Algebra - Faye, Sunday, August 24, 2014 at 12:26am
^ means squared and is the way we have been taught to show it.

So the 1st part of your question reads

5 squared - 4 squared

2nd part is

6 squared divided by

Thank you

Answer 1

Hiya,
i read through this and 132 isn't the answer. you need to do B.I.D.M.A.S
so...
simplify
12(6^/ (5^-4^))+7

12(6^/ (25-16))+7
12(6^/ (9))+7
12(36/ (9))+7
12(36/9)+7
12(4)+7
(12 x 4)+7
(48)+7
48+7=55

ANSWER=55

Answer 2

Normally, the ^ needs an exponent after it. So, I read it now as

12(6^2/(5^2-4^2)) + 7
12(36/(25-16))+7
12(36/9)+7
12(4)+7
48+7
55

You were ok until the last step. Unless otherwise indicated, multiplication is done before addition.

Ah. I see what went wrong; your unbalanced parentheses made me guess wrong. You evidently meant

12(6^2/(5^2-4^2) + 7)
In that case, your answer is correct.
But your penultimate line

12(4) + 7

clearly means 12*4 + 7 = 48+7

Your answer requires 12(4+7)

Answer 3

actually you have placed the brackets in wrong.

12(4)+7
BECOMES: 12*4+7
You said that you place the brackets like this: 12* (4+7)

However,
B.I.D.M.A.S: (Multiply comes before add)

so.. the brackets actually go like this: (12*4)+7

giving you 55

(if you don't belive me go get a scientific calculator and type it in.)