Intro
2x Fm C# G# D#
[Verse 1]
Fm C#
If you try to solve a quadratic equation,
G# D#
I promise you: It's possible without any frustration,
Fm C#
if you take everything, move it to one side,
G# D#
sort by x squared, x and the rest. Alright.
Fm C#
Take the coefficients, name them a, b and c
G# D#
and if you know the right formula, you will see
Fm C#
that you get the solution in the very next step.
G# D#
Just sing this song in your head:
[Chorus]
Fm C# G# D#
Negative b plus or minus the square root of
Fm C# G# D#
b squared minus 4ac over 2a
[Verse 2]
Fm C#
Okay. Let's start with our equation and our job is going to be
G# D#
solving this now for x, so let's take minus c,
Fm C#
multiply by 4a and if you now add b squared
G# D#
it all looks way to complicated, but don't be scared.
Fm C#
Just take a close look to the left side and you'll see:
G# D#
There's a binomial formula with 2ax and b,
Fm C#
so altogether this is the square of 2ax+b
G# D#
and now we have only one x, so the next step will be
Fm C#
to get rid of the square and if the right side is not negative,
G# D#
the square root must be one solution, but there's an alternative,
Fm C#
'cause minus the square root yields the same if you square it,
G# D#
so we write "plus minus" and now we are at the point, where it
Fm C#
only takes two more steps to solve it for x
G# D#
and if you look to the left side, you know what will be next:
Fm C# G# D#
Subtraction of b and division by 2a is giving us our formula for x. Okay. And it's
[Chorus]
Fm C# G# D#
Negative b plus or minus the square root of
Fm C# G# D#
b squared minus 4ac over 2a
Fm C# G# D#
Negative b plus or minus the square root of
Fm C# G# D#
b squared minus 4ac over 2a
Gm D# A# F
Negative b plus or minus the square root of
Gm D# A# F
b squared minus 4ac over 2a
Gm D# A# F
Negative b plus or minus the square root of
Gm D# A# F
b squared minus 4ac over 2a