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

User I Make My Mark
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1 Answer

19 votes
19 votes

SOLUTION:

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

User Cmirian
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