Question

Evaluate the following expression using the difference of squares factoring:86 to the power of 2- 14 to the power of 2

Answer 1

Case: Difference of two squares

Method:

`a^2-b^2=(a+b)(a-b)`

Hence:

`\begin{gathered} 86^2-14^2 \\ =(86+14)(86-14) \\ =100*72 \\ =7200 \end{gathered}`

Final answer:

7200