(x^2-25)(x^2-81)=0

Simple and best practice solution for (x^2-25)(x^2-81)=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 (x^2-25)(x^2-81)=0 equation:


Simplifying
(x2 + -25)(x2 + -81) = 0

Reorder the terms:
(-25 + x2)(x2 + -81) = 0

Reorder the terms:
(-25 + x2)(-81 + x2) = 0

Multiply (-25 + x2) * (-81 + x2)
(-25(-81 + x2) + x2(-81 + x2)) = 0
((-81 * -25 + x2 * -25) + x2(-81 + x2)) = 0
((2025 + -25x2) + x2(-81 + x2)) = 0
(2025 + -25x2 + (-81 * x2 + x2 * x2)) = 0
(2025 + -25x2 + (-81x2 + x4)) = 0

Combine like terms: -25x2 + -81x2 = -106x2
(2025 + -106x2 + x4) = 0

Solving
2025 + -106x2 + x4 = 0

Solving for variable 'x'.

Factor a trinomial.
(25 + -1x2)(81 + -1x2) = 0

Factor a difference between two squares.
((5 + x)(5 + -1x))(81 + -1x2) = 0

Factor a difference between two squares.
((9 + x)(9 + -1x))(5 + x)(5 + -1x) = 0

Subproblem 1

Set the factor '(5 + x)' equal to zero and attempt to solve: Simplifying 5 + x = 0 Solving 5 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + x = 0 + -5 x = 0 + -5 Combine like terms: 0 + -5 = -5 x = -5 Simplifying x = -5

Subproblem 2

Set the factor '(5 + -1x)' equal to zero and attempt to solve: Simplifying 5 + -1x = 0 Solving 5 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1x = 0 + -5 -1x = 0 + -5 Combine like terms: 0 + -5 = -5 -1x = -5 Divide each side by '-1'. x = 5 Simplifying x = 5

Subproblem 3

Set the factor '(9 + x)' equal to zero and attempt to solve: Simplifying 9 + x = 0 Solving 9 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + x = 0 + -9 x = 0 + -9 Combine like terms: 0 + -9 = -9 x = -9 Simplifying x = -9

Subproblem 4

Set the factor '(9 + -1x)' equal to zero and attempt to solve: Simplifying 9 + -1x = 0 Solving 9 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -1x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1x = 0 + -9 -1x = 0 + -9 Combine like terms: 0 + -9 = -9 -1x = -9 Divide each side by '-1'. x = 9 Simplifying x = 9

Solution

x = {-5, 5, -9, 9}

See similar equations:

| 7p+5-4q+3p-9+9= | | -3=4x+3x+9 | | 7x^2-84x-196= | | A=2x+6xb | | 22f=672 | | 8y-9xy= | | 3*9-5*9-12=7*9-88-5 | | -50-45=-1130 | | 5x+3=-2x+(-3) | | 2x^2=-4x+1 | | .5(10X-7)=5X+6 | | v/(-15)=4 | | Y=-3.1x | | 16t^2-183t+95=0 | | 5g-3-5-3g= | | -w/25=25 | | 4K-24-3k+2=-5 | | 4a+b=8 | | 0.8x=0.2x+24 | | 11-2v=3-4v | | 2x^2+4r=5 | | 3x-6=6x-30 | | 12x+18=54 | | 17+3(z-2)-11=7(Z+2)+14 | | 6b-2b-8= | | 15y-5=6x | | X^2-55x+564=0 | | 0.5(7-5x)=16-(6x+12) | | 4.95x+11.95y=64.70 | | w^2+16+60=0 | | 26+4X=15X | | 8x-3=x+32 |

Equations solver categories