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Question 212282This question is from textbook algebra 1
: 2x^2-(4-x^)
using the distributive property.
multiplying expressions.
I need help understanding how to get the correct solution.
This question is from textbook algebra 1
Answer by rapaljer(4671)   (Show Source):
You can put this solution on YOUR website! I'm not sure you stated the problem correctly. At the end of the expression you have x^ but there is no power. I'm going to guess that this was supposed to be squared like this:
2x^2-(4-x^2)
Notice that the 2x^2 is to the LEFT of the subtraction sign that follows it, so it actually has nothing to do with the parentheses. It might help to place a 1 before the parentheses like this:
2x^2-1(4-x^2)
Now, you can write:
2x^2 - 4 + x^2 (If indeed that is what you meant to put there!)
Now, combine like terms:
2x^2 + 1x^2 -4
3x^2 - 4
R^2
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