Question

$(107+2)\times (107-2)$ =.

• A. ${(107-2)}^2$
• B. ${107}^2-2^2$
• C. $2^2-2\left(107\right)$

Answer 1

The correct option is B ${107}^2-2^2$

Using identity $(a+b)(a-b)=a^2-b^2$,

$(107+2)\times (107-2)$

= ${107}^2-2^2$