Question

Use the quadratic formula to solve 3x2 – 12 = 0.

Answer 1

2 or -2

Answer 2

\[3(x^2-4)=0\]
\[3(x-2)(x+2)=0\]
\[x-2=0\]
\[x=2\]
\[x+2=0\]
\[x=-2\] there!