Question

Help solve a problem

Answer 1

4. factor the following:

`2x^2-72`

First thing we do is to factor common term 2 as it follows

`=2(x^2-36)`

then, we factor x^2-36

`=2\cdot(x-6)\cdot(x+6)`

from the above, we can see that the error was in not multiplying by 2 in the last step