Question

Solve each quadratic equation using the Quadratic Formula.

Answer 1

x=-4+-√4²-4(5)(0)
------------------------
           2(5)

x=-4+-16
------------
     10


-20
----
10  

x=-2

-4+16
---------
   10

x=1.2

Answer 2

Answer:

$x = -\frac45, x = 0$

Step-by-step explanation:

Hello!

To solve this, we have to simplify the radical and fraction.

Simplify:

• $x = \frac{-4 \pm\sqrt{4^2 - 4(5)(0)}}{2(5)}$
• $x = \frac{-4 \pm \sqrt{16}}{10}$
• $x = \frac{-4 \pm 4}{10}$
• $x = -\frac45, x = 0$

There are two solutions for x: -0.8, and 0.