Expand using suitable identity : 103 x 107
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Answer:
Expansion=100^2+(3+7)100+3*7
Final solution=11021
Step-by-step explanation:
Split the equation as
(100+3)*(100+7)
It is now in the form of (x+a)*(x+b)
Where x=100, a=3, b=7
(x+a)*(x+b)=x^2+(a+b)x+ab
=100^2+(3+7)100+3*7
=10000+1000+21
=11021
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