1. A REFLECTION ON BINOMIAL EXPANSION – BY: ABDULLA AL JAIDAH

2. BINOMIAL EXPRESSION TO FIND THE SQUARE OF TWO NUMBERS

3. An engineer who lives 100 years back must have used a long multiplication method rather than the algebraic expression method. If we want to make a square playing field we have to square the side.if we know we can use the algebraic method.

4. Consider the side of the square field with length 45 m and by using long multiplication we get the area of the field as 45 x 45 ----------- 225 180 ---------------- 2025

5. If we use the formula ( a + b )2=a2 + 2ab + b2 we get it as follows ( 40 + 5 )2= 1600+400+25 =2025 here we find the formula as much easy.

6. When we do multiplication of large numbers this method is very difficult. Hence we have to o for long multiplication.

7. It is interesting to see that when we want to find the cube and fourth power of a number this binomial expression will help us a lot.

8. Decimals multiplication will be too tough when there is a large number of decimals to multiply…..so that case algebra multiplication is time wasting.

9. Multiply 5.068 with 5.068 by using algebra method we get (5+0.068)2 …..here we can only do long multiplication as per the instruction.