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Simplify (2a+b)^2-(2a+b)(a-3b)​

User Erlend
by
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1 Answer

4 votes

Answer:

Distribute:

4a^2+4ab+b^2+-2a^2+5ab+3b^2

Combine like terms:

(4a^2+2a^2)+(4ab+5ab)+(b^2+3b^2)

=2a^2+9ab+4b^2

User NathanPB
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