The quadratic function f(x) = -x2 - 6x - 8 is graphed. What are the solutions of the quadratic equation 0 =-
x2 - 6x-8?
2
O 2 and 4
-2 and 4
0-2 and -4
O2 and 4
2
X
-654-3
Next
Submit
Save and Exit
Mark this and return

The roots of the quadratic function are   and .

Step-by-step explanation:

Let be , the function is now graphed by using a graphing tool and whose outcome is added below as attachment. After looking the image, the roots of the polynomial are and , respectively. It can be also proved by algebraic means:

1) Given

2) Distributive property/

3) Addition

4) Distributive property/Associative property

5) Distributive property/Result

Which supports the graphic findings.

The roots of the quadratic function are   and .

step-by-step explanation:

we are given

since, we have to isolate x on anyone side

so, we can move all x terms on one side

subtract both sides by 2x

add both sides by 9

divide both sides by 4

we get