Discussion
| (A) |  |
| (B) | ... |
| (C) | ... |
| (D) | ... |
| (E) | ... |
| (F) | ... |
The solution is
Posted: 02/06/2012 21:29
How do you know if 2x be equal
Posted: 02/06/2012 23:52
Michele, I think your question is about the fundamental rule of arithmetic:
4 = 4
1 + 3 = 4
2 + 2 = 4
Since I am aware you know this rule, you must have overlooked these while being busy with exponent rules.
What we can do is simplify (2x)^2 into 4x^2 that make the sum;
2x^2 + 4x^2 =
Now we can add the coefficients cause we have like exponents and we'll get 6x^2, thus...
2x^2 + 4x^2 = 6x^2
2x^2 + (2x)^2 = 6x^2
Just as equal as 2 + 4 = 6 :)
Niels
4 = 4
1 + 3 = 4
2 + 2 = 4
Since I am aware you know this rule, you must have overlooked these while being busy with exponent rules.
What we can do is simplify (2x)^2 into 4x^2 that make the sum;
2x^2 + 4x^2 =
Now we can add the coefficients cause we have like exponents and we'll get 6x^2, thus...
2x^2 + 4x^2 = 6x^2
2x^2 + (2x)^2 = 6x^2
Just as equal as 2 + 4 = 6 :)
Niels
Posted: 07/28/2012 23:46
The answer to this question is not in the multiple choice. Multiple choice E is the incorrect answer.
Posted: 07/28/2012 23:50
Please disregard my comment..multiple choice E is correct. I was looking at answer D when I was writing the comment.