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Mathematics 9 Online
OpenStudy (anonymous):

(0.1x + 0.4y)^2

OpenStudy (anonymous):

\[use (a+b)^2 = a^2 + 2ab + b^2\]

OpenStudy (anonymous):

how

OpenStudy (anonymous):

0.1x = a 0.4y = b what is a^2 and b^2? by the way what is the question to your expression?

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