Question

What is the fastest way to solve a quadratic equation?
I know of the quadratic formula & the cross-hatch (the X-formation) way, but are there faster ways?

Thanks :)

Answer 1

@ganeshie8 @UnkleRhaukus

Answer 2

Quadratic formula is the fastest way.

Answer 3

I thought the four-box way was fastest... my math teacher keeps drilling that into us e_e

I don't know if I can use a calculator - so -

Answer 4

The four-box way?

Answer 5

Four box: