# Using the formula

(i) Given,

(54)2

If we break the given number we get;

(50 + 4)2

Now we can use the (a + b)2 = a2 + b2 + 2ab

So,

= (50 + 4)2 = (50)2 + (4)2 + 2 × 50 × 4

= 2500 + 16 + 400

= 2916

(ii) (82)2

We can also write it as;

(80 + 2)2

By using the formula (a + b)2 = a2 + b2 + 2ab

We get,

= (80 + 2)2 = (80)2 + (2)2 + 2 × 80 × 2

= 6400 + 4 + 320

= 6724

(iii) (103)2

We can also write it as;

(100 + 3)2

By using the formula (a + b)2 = a2 + b2 + 2ab

We get,

(100 + 3)2 = (100)2 + (3)2 + 2 × 100 × 3

= 10000 + 9 + 600

= 10609

(iv) (704)2

We can also write it as;

(700 + 4)2

By using the formula (a + b)2 = a2 + b2 + 2ab

We get,

= (700 + 4)2 = (700)2 + (4)2 + 2 × 700 × 4

= 490000 + 16 + 5600

= 495616

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses
RELATED QUESTIONS :

On dividing p (4pNCERT - Mathematics Exemplar

Express each of tRD Sharma - Mathematics

State whether theNCERT - Mathematics Exemplar

Find each of the RD Sharma - Mathematics

Express each of tRD Sharma - Mathematics

The value of (3x<NCERT - Mathematics Exemplar

Find each of the RD Sharma - Mathematics

Find each oRS Aggarwal - Mathematics

Find each of the RS Aggarwal - Mathematics