Advertisements
Advertisements
प्रश्न
Using distributive law, find the square of 72
Advertisements
उत्तर
Given: 72
As we know,
(72)2 is to find using distributive law:
722 = (70 + 2)2
= (70 + 2)(70 + 2)
= 70(70 + 2) + 2(70 + 2)
= ((70 × 70) + (70 × 2)) + ((2 × 70) + (2 × 2))
= 4900 + 140 + 140 + 4
= 5184
APPEARS IN
संबंधित प्रश्न
What will be the unit digit of the square of the given number?
272
The following number are obviously not perfect square. Give reason.
222222
The following number are obviously not perfect square. Give reason.
89722
The square of which of the following number would be an odd number?
42008
Find the least number which must be added to the following numbers to make them a perfect square:
5607
Find the least number which must be added to the following numbers to make them a perfect square:
506900
A number ending in 9 will have the units place of its square as ______.
Which among 432, 672, 522, 592 would end with digit 1?
The square of 86 will have 6 at the units place.
There are 200 natural numbers between 1002 and 1012.
