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Expand (4x+0.9)^2. Thanks!:))
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Expand (4x+0.9)^2.

Thanks!:))

User Brandozz
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1 Answer

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(4x+0.9)^2=(4x)^2+2\cdot4x\cdot0.9+0.9^2=16x^2+7.2x+0.81
User Kakadu
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