Question

Evaluate 205x206 by using suitable identity

Answer 1

Hi mate!!

Hi mate!!Here is ur answer:-

• here, (x+a) (x+b) = x²+(a+b)x+(ab) identity is to be used.

• we can rewrite 205 × 206 as,

→(200+5) (200+6)

• solving it by the given identity, we get,

(200+5) (200+6)

(200)² + (5+6)200 + (5×6)

40000+2200+30

42230

So, evaluating 205×206 we get product as 42230.

Therfore, product of 205×206 is 42230

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Answer 2

Answer:

42230

step by step explanation: