Question

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1. [59]3
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Answer 1

Step-by-step explanation:

(50+9)×3=150+27

=177

=100+70+7

Answer 2

Given:

     Expand

To find:

      59³

Solution:

• Expand the given number in terms of ones and tens(50+9).
• Solve using the suitable formula (a + b)³= a³+b³+3ab(a+b)

    59³ = (50+9)³

     (a + b)³= a³+b³+3ab(a+b)

here a= 50 and b = 9, substitute the values of a and b in the formula

(50+9)³=50³+9³+3×50×9(50+9)

            =125000+729+1350(59)

            =125000+729+79650

            = 205379.

Hence the value of 59³ is205379.