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Dodger

  • 2 years ago

(a + b)(a - 2b)

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  1. Yossef
    • 2 years ago
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    a^2-2ab+ab-2b^2

  2. texaschic101
    • 2 years ago
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    FOIL method F - first O - outside I - inside L - last (a + b)(a - 2b) First - multiply first terms in each set....a * a = a^2 Outside - multiply outside terms ....a * -2b = -2ab Inside - multiply inside terms ...b * a = ab Last - multiply last terms....b * -2b = -2b^2 Now put them together... a^2 - 2ab + ab - 2b^2 (combine like terms) a^2 - ab - 2b^2

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