Week 6- Quadratic Formula

Quadratic Formula is a formula used when solving irrational equation or equations that can’t be factorized.

 

This week, I have learned a new method to factor. Its called quadratic formula. Its somehow easier and convenient to use than factorization as long as you know the formula.

The first step when using this formula is to find what a, b, c are.

For example,

x^2-12x+36

a would be 1

b would be -12

c would be 36

when plugging all these numbers into the formula, it would turn out to be

x=-(-12)+/-sqrt{-12^2-4(1)(36)}div 2(1)

x=12+/- sqrt{144-144}div 2

x=12div 2

x=6