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Long Multiplication! Foil Method! Example:

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0.296² = (1-0.704)(1-0.704) = 1-0.704-0.704+0.495616 =0.087616 Example: Foil Method! Long Multiplication!

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Example: How is the decimal point positioned? 504.2 has 1 digit after the decimal point and 50.42 has 2 digits after the decimal point making a total of 3 digits after the decimal point. The final answer must also have 3 digits after the decimal point. So:504.2 × 50.42 = 25421.764

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Example: 5² = (4+1)(4+1) =16+4+4+1 =25

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