4x^4-7x^3-4x^2=0

Simple and best practice solution for 4x^4-7x^3-4x^2=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 4x^4-7x^3-4x^2=0 equation:


Simplifying
4x4 + -7x3 + -4x2 = 0

Reorder the terms:
-4x2 + -7x3 + 4x4 = 0

Solving
-4x2 + -7x3 + 4x4 = 0

Solving for variable 'x'.

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

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 '(-4 + -7x + 4x2)' equal to zero and attempt to solve: Simplifying -4 + -7x + 4x2 = 0 Solving -4 + -7x + 4x2 = 0 Begin completing the square. Divide all terms by 4 the coefficient of the squared term: Divide each side by '4'. -1 + -1.75x + x2 = 0 Move the constant term to the right: Add '1' to each side of the equation. -1 + -1.75x + 1 + x2 = 0 + 1 Reorder the terms: -1 + 1 + -1.75x + x2 = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -1.75x + x2 = 0 + 1 -1.75x + x2 = 0 + 1 Combine like terms: 0 + 1 = 1 -1.75x + x2 = 1 The x term is -1.75x. Take half its coefficient (-0.875). Square it (0.765625) and add it to both sides. Add '0.765625' to each side of the equation. -1.75x + 0.765625 + x2 = 1 + 0.765625 Reorder the terms: 0.765625 + -1.75x + x2 = 1 + 0.765625 Combine like terms: 1 + 0.765625 = 1.765625 0.765625 + -1.75x + x2 = 1.765625 Factor a perfect square on the left side: (x + -0.875)(x + -0.875) = 1.765625 Calculate the square root of the right side: 1.328768227 Break this problem into two subproblems by setting (x + -0.875) equal to 1.328768227 and -1.328768227.

Subproblem 1

x + -0.875 = 1.328768227 Simplifying x + -0.875 = 1.328768227 Reorder the terms: -0.875 + x = 1.328768227 Solving -0.875 + x = 1.328768227 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.875' to each side of the equation. -0.875 + 0.875 + x = 1.328768227 + 0.875 Combine like terms: -0.875 + 0.875 = 0.000 0.000 + x = 1.328768227 + 0.875 x = 1.328768227 + 0.875 Combine like terms: 1.328768227 + 0.875 = 2.203768227 x = 2.203768227 Simplifying x = 2.203768227

Subproblem 2

x + -0.875 = -1.328768227 Simplifying x + -0.875 = -1.328768227 Reorder the terms: -0.875 + x = -1.328768227 Solving -0.875 + x = -1.328768227 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.875' to each side of the equation. -0.875 + 0.875 + x = -1.328768227 + 0.875 Combine like terms: -0.875 + 0.875 = 0.000 0.000 + x = -1.328768227 + 0.875 x = -1.328768227 + 0.875 Combine like terms: -1.328768227 + 0.875 = -0.453768227 x = -0.453768227 Simplifying x = -0.453768227

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.203768227, -0.453768227}

Solution

x = {0, 2.203768227, -0.453768227}

See similar equations:

| -12+y+3y=28 | | 3-(-1)= | | 10w-18=52 | | x/4+2=14 | | 4(x-4)+12=-10x | | 5x+15=9x+6 | | 2-(-3)(-3)= | | 2x=12+10+2x | | (7x-2)(2x+5)= | | -2(y+12)=y-9 | | m3/4+n3/4=5 | | 2+1.5n=3.2 | | 9x+7y=63 | | -11x+165=20 | | 2(5x-1)+8x-1=(5x-15) | | 3/7v+5/2=-7/2+2/3 | | -2*37= | | 2(x-4)+6=-5x | | 3w-3q=25 | | -3(x-1)+8(x-3)=6x+7x-5x | | 2/5a-3/4b=c | | b^2+10b+31=7 | | 6(x+1)=6x+2 | | 2-(-x)forx=-3 | | 6r^2+19r=10 | | 2/3(n-6)=5n-43 | | 5(x-3)+2=-13 | | 5x-2(x+1)=x+4 | | -2-(-5)/7-10 | | 6x-5y=-30 | | 2/3n-4=5n-43 | | 6v=-v+28 |

Equations solver categories