document.write( "Question 404971: Hi I need to know how to solve this problem,please explain. 2b + 4b(2-b) , my answer is 4b-2b^2+8b-4b^2 I know is wrong now from here I have to subtract,but how that's where I am stuck. Thanks you!!! \n" ); document.write( "

Algebra.Com's Answer #286156 by IWork4Dessert(60) $\"\"$ $\"About$

You can put this solution on YOUR website!
I'll start this problem from the beginning, just in case you made an error along the way.
\n" ); document.write( "2b+4b(2-b)
\n" ); document.write( "The first step is to distribute that 4b inside the parentheses, like so:
\n" ); document.write( "2b+8b-4b^2
\n" ); document.write( "I believe that's where you went wrong. I'm not entirely sure how you came up with the extra -2b^2 and how you got the 4b, but distribution is the proper way to start.
\n" ); document.write( "Next you need to combine your like terms. To add these numbers and variables together, they must have the same exponential value. You can't add 6b and 4b^2, as tempting as it may seem.
\n" ); document.write( "2b and 8b are like terms, so you add them.
\n" ); document.write( "10b-4b^2
\n" ); document.write( "That's your answer.
\n" ); document.write( "Hope this helps :) \n" ); document.write( "

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