Question

use (x+a) (X+b) =x^2+(a+b)X= ab find 1.102*101.
2.100*101​

Answer 1

Answer:

1)

Step-by-step explanation:

1)(100+1)(100+2)

(100)²+(1+2)*100=2*1

10000+300=3

10300-3

10297

2)(99+1)*(99+2)

(99)²+(1+2)*99-(1*2)

9801+297-3

10095