Question

evaluate using appropriate identity 103 ×107

Answer 1

(100+3)(100+7)
(100)square+(3+7)*100+3*7
10000+10*100+21
10000+1000+21
11021 Answer
Here you go***

Answer 2

Answer:

$103\times 107=11021$

Step-by-step explanation:

Given : Expression $103\times 107$

To evaluate : The given expression with the appropriate identity

Solution :

Expression

$103\times 107$

$=(100+3)\times (100+7)$

Using the identity $(x+a)(x+b)=x^2+(a+b)x+ab$

Where, x=100 , a=3 , b=7

$=100^2+(3+7)100+3\times7$

$=10000+(10)100+21$

$=10000+1000+21$

$=11021$

Therefore, The solution of the given expression is

$103\times 107=11021$