Question

7. Evaluate using identity: 201 x 202.

Answer 1

Answer:

40602

Step-by-step explanation:

(200+1)(200+2). {(X+a)(X+b)=x²+(a+b)X+ab}

40000+(1+2)200+2

40000+600+2

40602

Answer 2

Answer:

Answer is 40602

Step-by-step explanation:

201 x 202

=(200 + 1) x (200 + 2)

=200 x 200 + 200 x 2 + 1 x 200 + 1 x 2

=40000 + 400 + 200 + 2

=40602