julieedjensen julieedjensen

02-09-2016
Mathematics

contestada

I'm pretty sure d) is supposed to be 3a^2 - 3b^2. Where have I gone wrong?

Im pretty sure d is supposed to be 3a2 3b2 Where have I gone wrong class=

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SyntaxError SyntaxError

02-09-2016

[tex](2a+b)^2-(a+2b)^2 \\ (4a^2+4ab+b^2)-(a^2+4ab+4b^2) \\ (4a^2+4ab+b2-a^2-4ab-4b^2) \\ (3a^2-3b^2) Final Answer [/tex]

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I need help with this for my classs :(