Use the quadratic formula to find the solutions for
y = 3x^3 + 8x - 1

Solving the equation using quadratic formula we get

Step-by-step explanation:

We need to use the quadratic formula to find the solutions for

(Note: quadratic formula is used when x^2 is in the equation. So considering 3x^2 instead of 3x^3)

The quadratic formula is:

From the given equation we have a =3, b=8 and c =-1

Putting values in the formula and finding solutions:

So, Solving the equation using quadratic formula we get

9.55 degrees.

step-by-step explanation:

the given angle is

1 cycle is equal to 2π radians. so 4π will be equal to two cycles.

5.166667π-4π = 1.166667π

hence, this angle goes a little more than negative x axis.

1.166667π-π= 0.166667π

hence, the reference angle is 0.166667π radians.

1 radian = 57.2958 degrees

now, in degrees, this should be equals to 9.55 degrees.