Factorisation of Expressions Using Common Factors

Q. Calculate $103\times 107$ using algebraic identities.

1. 10121
2. 11021
3. 10021
4. 12011

Q. What term should be added to $a^2-2ab$ to make it a perfect square?

1. $b$
2. $b^2$
3. $2ab$
4. $a^2$

Q. Calculate $103\times 107$ using algebraic identities.

1. 10121
2. 11021
3. 10021
4. 12011

Q.

Using identities, evaluate 297 $\times$ 303 = ___

Q. Using identities, evaluate 297 $\times$ 303 = ___.