Evaluate the following products without actual multiplication.30.5*29.5

Question

Evaluate the following products without actual multiplication.30.5*29.5

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Eloise 3 weeks 2021-09-09T14:04:19+00:00 1 Answer 0 views 0

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    2021-09-09T14:06:00+00:00

    Answer:

    899.75

    Step-by-step explanation:

    30.5*29.5= (30+0.5)*(30-0.5)

    Using the identity: (a+b)(a-b)= a^2 – b^2

    (30+0.5) (30-0.5) = (30)^2 – (0.5)^2

                                 = 900 – 0.25

                                 = 899.75

    HOPE IT HELPS……

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