Maths-
General
Easy

Question

Rewrite (7.7.7.7 + 5.5.5 -3.3.3) in simplest form using exponents:

  1. (74 + 53 -33)
  2. (47 +53 +33)
  3. (75 + 53 -33)
  4. (47 -53 -33)

hintHint:

We have to write the given question in exponent form.

The correct answer is: (74 + 53 -33)


    The given value is
    (7.7.7.7 + 5.5.5 - 3.3.3)
    When we have am an = am+n

    Here we have 7.7.7.7=71+1+1+1
    =74
    5.5.5 = 51+1+1
    = 53
    3.3.3 = 31+1+1
    = 33
    So, (7.7.7.7+5.5.5-3.3.3) = (74 + 53 -33)

    Sometimes if the power is not one, we have to be careful while adding that.

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