Question

Using the formula for squaring a binomial, evaluate the following: (ii) (99)2 (ii) (1001)2

Answer 1

Answer:

9801 and 1002001

Step-by-step explanation:

(ii) (99)2 This can be written as: (100 – 1)2 = (100)2 – 2 (100) (1) + 12 = 10000 – 200 + 1 = 9801

(iii) (1001)2 This can be written as: (1000 + 1)2 = (1000)2 + 2 (1000) (1) + 12 = 1000000 + 2000 + 1 = 1002001

Answer 2

Answer:

(I)9801 (ii)1002001

Step-by-step explanation:

(I) (100-1)2=10000+1-200=9800+1=9801

(ii)(1000+1)2=1000000+1+2000=1002001