Factoring + Solving

Quadratic Equations

x^2-4x+4=0

1. Find the factors of 4 that add up to 4. -2 and -2

2. Rewrite the equation. x^2-2x-2x+4.

3. Then split the problem and see what goes with what. x^2-2x, -2x+4

x(x-2) -2(x-2)

5. Then fix the answer (x-2)(x-2)

6. In order to make the answer to zero make x equal 2

7. Then put the answer in brackets {2,2}

How this is used in real life.

Athletics

Mathematicians
Taxes