Make sure you write all the terms on the left-hand side of the equation and simplify as much as possible before using the Quadratic Formula.
J
Practice makes perfect
We will use the Quadratic Formula to solve the given quadratic equation.
ax^2+ bx+ c=0 ⇕ x=- b± sqrt(b^2-4 a c)/2 a
Let's start by rewriting the equation so all of the terms are on the left-hand side and then simplify as much as possible.
Now, we can identify the values of a, b, and c.
x^2-8x-20=0 ⇕ 1x^2+( - 8)x+( - 20)=0
We see that a= 1, b= - 8, and c= - 20. Let's substitute these values into the Quadratic Formula.
