7x^4=28x^2

Simple and best practice solution for 7x^4=28x^2 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 7x^4=28x^2 equation:


Simplifying
7x4 = 28x2

Solving
7x4 = 28x2

Solving for variable 'x'.

Reorder the terms:
-28x2 + 7x4 = 28x2 + -28x2

Combine like terms: 28x2 + -28x2 = 0
-28x2 + 7x4 = 0

Factor out the Greatest Common Factor (GCF), '7x2'.
7x2(-4 + x2) = 0

Factor a difference between two squares.
7x2((2 + x)(-2 + x)) = 0

Ignore the factor 7.

Subproblem 1

Set the factor 'x2' equal to zero and attempt to solve: Simplifying x2 = 0 Solving x2 = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x2 = 0 Take the square root of each side: x = {0}

Subproblem 2

Set the factor '(2 + x)' equal to zero and attempt to solve: Simplifying 2 + x = 0 Solving 2 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + x = 0 + -2 x = 0 + -2 Combine like terms: 0 + -2 = -2 x = -2 Simplifying x = -2

Subproblem 3

Set the factor '(-2 + x)' equal to zero and attempt to solve: Simplifying -2 + x = 0 Solving -2 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + x = 0 + 2 Combine like terms: -2 + 2 = 0 0 + x = 0 + 2 x = 0 + 2 Combine like terms: 0 + 2 = 2 x = 2 Simplifying x = 2

Solution

x = {0, -2, 2}

See similar equations:

| n+34=35n | | t+d/10-12 | | 9-(2z-1)=2-3z | | B=xn+x | | 3c*5d= | | 17-20q=(-13-5)4 | | (34-x)+11=-4 | | 3-x=18+6 | | 4-(a+3)-7=6a-21 | | 8h=-400 | | ((0.79-X)(0.21-X))=0.0011 | | 5y-7=2y+1 | | -3/7=2f/3 | | 14x-1=12x+17 | | (4X2)/((0.79-X)(0.21-X))=0.0011 | | 3x-21/10=5x-3/6 | | 2x-11=-13-10x | | -4(2x-2)-3x+1=2x-3 | | 4(a+12)=-6 | | 8x^2-7=4x^2+9 | | Y=(0.8Y+100)+(-20r+1000) | | 75-y=287 | | 500=20+150*ln(8t+1) | | 72=-3y | | x-1-2(-5x+4)=-5x-25 | | (X+18)-27=6 | | 1*5+6000x=45*9500000x | | 7x+4+x=1+5x-9 | | x=ae | | -7z=-84 | | 41=32-rl | | 10-4x=5-7x |

Equations solver categories