Question

Evaluate the following by using suitable identities:

Q) 109 times 108

Answer 1

(100+9)(100+8)

[x^2+(a+b)x+ab]

(100)^2+(9+8)(100)+(9*8)

10000+1700+72

11772

Answer 2

Answer:

109×108

(100+9)×(100+8)

(100)²+100(9+8)+9×8

10000+1700+72

11772