Question

1. Find the values using expansion formula 27 X 33.
2. Simplify: (5x + 2) - (5x - 2)2
3. The present population of a town is 24,00,000. If it increases at the rate of 5%pa, what will be the population after 4 years?​

Answer 1

Step-by-step explanation:

1. lets write this as

(30-3)(30+3)

${a}^{2} - {b}^{2} = (a + b)(a - b)$

a= 30, b= 3

(30-3)(30+3)=

${30}^{2} - {3}^{2}$

=>900-9

=>891