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7 July, 18:15

Choose the correct simplification of the expression b5 ⋅ b4. b b9 b20 b-1

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  1. 7 July, 21:39
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    When multiplying like terms, you add the exponents:

    b^5 · b^4 = b^ (5+4) = b^9

    FYI - when dividing like terms, subtract the exponents.

    The only time we multiply exponents is when they distribute across parentheses:

    (x³) ² = x^6
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