The minimum number of multiplications required to evaluate

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  • September 1, 2011 at 10:16 am #1915
    Aakanksha
    Participant

    The minimum number of multiplications required to evaluate

    September 1, 2011 at 10:16 am #10498
    ahwriter
    Participant

    The minimum number of multiplications required to evaluate the expression

    a + bx + cx2 + dx3 + ex4 is

    1. 4

    2. 5

    3. 3

    4. 7

    plz explain…

    September 1, 2011 at 10:17 am #10499
    Aakanksha
    Participant

    It should be 5…

    a+x*(b+c*x) + x*x* (c+d*x)

    September 1, 2011 at 10:17 am #10500
    ahwriter
    Participant

    no sorry that was a mistake….

    a + bx + cx2 + dx3 + ex4

    a+ x*(b+c*x) + x*x*X*(d+e*x)

    a+ x* [(b+c*x) + x*x*(d+e*x)]

    so it should be 5…

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