Posted by **lovelife** on Thursday, July 8, 2010 at 1:54pm.

Is this equation correct: (3 • x • y)4 = 81 • x • y ? Explain why. If it is correct, how can you prove this? If it is incorrect, what should be done to make it right?

- Math 117 -
**Henry**, Thursday, July 8, 2010 at 2:28pm
The stars that you show in your

equation means multiplication,

but they are not normally shown

in equations; because it is under

stood to mean multiply. The equation

is normally written like this:

4(3XY) = 81XY.

I hope I have answered your question.

- Math 117 -
**Henry**, Thursday, July 8, 2010 at 2:43pm
This is not an equation; 12XY

DOES NOT EQUAL 81XY.

- Math 117 -
**lovelife**, Thursday, July 8, 2010 at 7:58pm
So would you consider this equation correct if so why and if not why not?

- Math 117 -
**Henry**, Tuesday, July 13, 2010 at 4:47pm
This is correct: 12XY < 81XY, In other

words, 12 apples are less than 81 apples. So this is an inequality.

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