z^4+4z^2-77=0

Simple and best practice solution for z^4+4z^2-77=0 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for z^4+4z^2-77=0 equation:


Simplifying
z4 + 4z2 + -77 = 0

Reorder the terms:
-77 + 4z2 + z4 = 0

Solving
-77 + 4z2 + z4 = 0

Solving for variable 'z'.

Factor a trinomial.
(-11 + -1z2)(7 + -1z2) = 0

Subproblem 1

Set the factor '(-11 + -1z2)' equal to zero and attempt to solve: Simplifying -11 + -1z2 = 0 Solving -11 + -1z2 = 0 Move all terms containing z to the left, all other terms to the right. Add '11' to each side of the equation. -11 + 11 + -1z2 = 0 + 11 Combine like terms: -11 + 11 = 0 0 + -1z2 = 0 + 11 -1z2 = 0 + 11 Combine like terms: 0 + 11 = 11 -1z2 = 11 Divide each side by '-1'. z2 = -11 Simplifying z2 = -11 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.

Subproblem 2

Set the factor '(7 + -1z2)' equal to zero and attempt to solve: Simplifying 7 + -1z2 = 0 Solving 7 + -1z2 = 0 Move all terms containing z to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -1z2 = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1z2 = 0 + -7 -1z2 = 0 + -7 Combine like terms: 0 + -7 = -7 -1z2 = -7 Divide each side by '-1'. z2 = 7 Simplifying z2 = 7 Take the square root of each side: z = {-2.645751311, 2.645751311}

Solution

z = {-2.645751311, 2.645751311}

See similar equations:

| -5y-9=3+2y | | 2/5•x=26 | | p+100=3p-100 | | -5x-2+6x=-5 | | 13x+2=8x+12 | | 5y+4y=5 | | 3-5x+9x=19 | | 2k(3k+5)=0 | | H(x)=tan^5x^5 | | z-19=2z-64 | | -12=-2-5v | | x+3=7x-99 | | 7=9-z/5 | | (y+50)=(3y+20) | | 10q-14=9q-9 | | 4x-4(3x-15)=27 | | 7(2x-5)=56x | | 6x-6+7x+1+55=180 | | 2z=3z-86 | | y=82x+118 | | 12x+4x-90=182 | | 15=x^2+6x+8 | | 5x^2+9x-2=24 | | v+28=3v | | 22/9•15/28•8/55 | | 15=6y-3x | | 2x^2+2x-243=0 | | (3y+10)=(4y-20) | | 7x-2-3x=-2 | | 5(6x-2)=-40 | | 100+4x=180 | | (1+i)z^2-(1+5i)z+4+6i=0 |

Equations solver categories