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7 February, 18:02

Find the product of each sum and difference. (2l + 9) (2l - 9)

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  1. 7 February, 18:15
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    (21+9) (21-9) = 360

    Step-by-step explanation:

    Do whats in the parentheses first.

    21+9=30

    21-9=12

    When there is no symbol in between that means multiplication.

    30 x 12 = 360
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