Answer:
Your answer is One solution
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(2x + 1)^2 - 2(2x^2 - 1) = 4x^2 + 4x + 1 - 4x^2 + 2 = 4x + 3
19.41 because when you subtract 2013 - 17.2 you get 19.41
Answer:
We can check this two ways: distributing the -0.5, and plugging in a number for x.
First, we can check this by distributing the -0.5. Our equation becomes:
-1.5x -2.5 = -1.5x + 2.5
Clearly, this is not true. We can show this one more time by plugging in a number for x. I will use 2.
Now, we evaluate both sides and see if they are equal.
-3 - 2.5 = -3 + 2.5
-5.5 = 0.5
Clearly, this is not true. These expressions are not equivalent.
Step-by-step explanation:
1434 * 44444 = 63,732,696
This is multiplication that can be performed either by hand or with a calculator. If you have a more specific question about a more in-depth problem, post it and I would be happy to give you a better explanation of that multiplication.
Hope this helps!
