Question

Solve by Factoring: 4x2 - 16 = 0

What are the solutions for x?

Answer 1

Solve for x

Answer 2

\[x^2 = 4\]

Answer 3

\[x =\pm2\]

Answer 4

or you can factor as
\[4(x^2-4)=4(x+2)(x-2)\] you get the same solutions

Answer 5

You technically did it more correct than me, but my first step is to always see if you can solve for x first.

Answer 6

same exact thing. i only added because question said "solve by factoring"