Question

What steps do you take to factor the following expressions?

x^2 - 4

x^3 - 27

Answer 1

The same does not apply to the second question. Use this formula for the second question:

\(\Large a^3 + b^3 = (a+b)(a^2-ab+b^2)\)
\(\Large a^3 - b^3 = (a-b)(a^2+ab+b^2)\)

Answer 2

\[a^2-b^2=(a+b)(a-b)\]